redis常见使用场景下PHP实现
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2022-04-06 21:40:42
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这篇文章介绍的内容是关于redis常见使用场景下PHP实现 ，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
在 http://www.redis.net.cn/ 能找到所有关于redis的信息，包括安装、命令、在编程语言中的使用等等。这里就不讲如何安装redis了，因为在上面的网站中都能找到。下面直接讲redis是如何在php中使用的，这里我选择的是phpredis扩展。
1. 下载phpredis扩展
执行phpinfo()函数，根据下面截图中的“NTS”和“VCn”选择对应的压缩包，https://github.com/phpredis/phpredis/downloads。另外注意，PHP版本也要对应好。
2. PHP配置安装扩展
首先把压缩包中的 php_igbinary.dll和php_redis.dll 文件放到PHP安装目录的 ext 目录中
然后在 php.ini 添加如下配置
extension=php_igbinary.dll extension=php_redis.dll
3. 重启apache，执行phpinfo()函数，会发现多了redis的扩展。
4. 开启Redis服务，测试
$redis = new Redis(); //连接redis服务器
$redis->connect('127.0.0.1', '6379'); echo "Connection to server sucessfully <br/>"; //查看服务是否运行
echo "Server is running: " . $redis->ping();
结果如下，连接redis服务器成功
Connection to server sucessfully Server is running: +PONG
至此，我们可以在php中痛痛快快的使用redis了。
1 $redis = new Redis();
2 //连接redis服务器
3 $redis->connect('127.0.0.1', '6379');
4
5
6 $key = "key";
7 $val = "val";
8
9 //redis key操作
10 $redis->exists($key); //判断key值是否存在
11 $redis->expire($key, 10); //设置key在10秒后过期
12
13 //redis string 字符串
14 $redis->set($key, $val);
15 $redis->incr($key); //key值+1，除非val是整数，否则函数执行失败
16 $redis->decr($key); //key值-1，同上
17 $redis->append($key, "ue"); //追加key值内容
18 $redis->strlen($key); //返回key值的长度
19
20 //当第一次设置key值后，key值的数据类型就不能改变了。
21 $redis->del($key); //删除key值
22
23 //redis hash 哈希
24 $redis->hset($key, 'field1', 'val1'); //设置一个key-value键值对
25 $redis->hmset($key, array('field2'=>'val2', 'field3'=>'val3')); //设置多个k-v键值对26 $redis->hget($key, 'field2'); //获取hash其中的一个键值
27 $redis->hmget($key, array('field2', 'field1')); //获取hash的多个键值
28 $redis->hgetall($key); //获取hash中所有的键值对
29 $redis->hlen($key); //获取hash中键值对的个数
30 $redis->hkeys($key); //获取hash中所有的键
31 $redis->hvals($key); //获取hash中所有的值
32 $redis->del($key); //删除key值
33
34 //redis list 列表
35 $index = $start = 0;
36 $redis->lpush($key, 'val1', 'val2'); //在list的开头添加多个值
37 $redis->lpop($key); //移除并获取list的第一个元素
38 $redis->rpop($key); //移除并获取list的最后一个元素
39 $stop = $redis->llen($key) - 1; //获取list的长度
40 $redis->lindex($key, $index); //通过索引获取list元素
41 $redis->lrange($key, $start, $stop); //获取指定范围内的元素
42
43 $redis->del($key);
44
45 //redis set 无序集合
46 $redis->sadd($key, 'val1', 'val2'); //向集合中添加多个元素
47 $redis->scard($key); //获取集合元素个数
48 $redis->spop($key); //移除并获取集合内随机一个元素
49 $redis->srem($key, 'val1', 'val2'); //移除集合的多个元素
50 $redis->sismember($key, 'val1'); //判断元素是否存在于集合内
51
52 $redis->del($key);
53 //redis sorted set 有序集合
54 //有序集合里的元素都和一个分数score关联，就靠这个分数score对元素进行排序
55 $redis->zadd($key, $score1, $val1, $score2, $val2); //向集合内添加多个元素
56 $redis->zcard($key); //获取集合内元素总数
57 $redis->zcount($key, $minScore, $maxScore); //获取集合内分类范围内的元素
58 $redis->zrem($key, $member1, $member2); //移除集合内多个元素
附：Redis类的源码
<?php
/**
* Helper autocomplete for php redis extension
* @author Max Kamashev <max.kamashev@gmail.com>
* @link https://github.com/ukko/phpredis-phpdoc
*
* @method echo string $string Sends a string to Redis, which replies with the same string
*
* @method eval( $script, $args = array(), $numKeys = 0 )
* Evaluate a LUA script serverside
* @param string $script
* @param array $args
* @param int $numKeys
* @return Mixed. What is returned depends on what the LUA script itself returns, which could be a scalar value
* (int/string), or an array. Arrays that are returned can also contain other arrays, if that's how it was set up in
* your LUA script. If there is an error executing the LUA script, the getLastError() function can tell you the
* message that came back from Redis (e.g. compile error).
* @link http://redis.io/commands/eval
* @example
* <pre>
* $redis->eval("return 1"); // Returns an integer: 1
* $redis->eval("return {1,2,3}"); // Returns Array(1,2,3)
* $redis->del('mylist');
* $redis->rpush('mylist','a');
* $redis->rpush('mylist','b');
* $redis->rpush('mylist','c');
* // Nested response: Array(1,2,3,Array('a','b','c'));
* $redis->eval("return {1,2,3,redis.call('lrange','mylist',0,-1)}}");
* </pre>
*
*/
class Redis
{
const AFTER = 'after';
const BEFORE = 'before';
/**
* Options
*/
const OPT_SERIALIZER = 1;
const OPT_PREFIX = 2;
const OPT_READ_TIMEOUT = 3;
const OPT_SCAN = 4;
/**
* Serializers
*/
const SERIALIZER_NONE = 0;
const SERIALIZER_PHP = 1;
const SERIALIZER_IGBINARY = 2;
/**
* Multi
*/
const ATOMIC = 0;
const MULTI = 1;
const PIPELINE = 2;
/**
* Type
*/
const REDIS_NOT_FOUND = 0;
const REDIS_STRING = 1;
const REDIS_SET = 2;
const REDIS_LIST = 3;
const REDIS_ZSET = 4;
const REDIS_HASH = 5;
/**
* Scan
*/
const SCAN_NORETRY = 0;
const SCAN_RETRY = 1;
/**
* Creates a Redis client
*
* @example $redis = new Redis();
*/
public function __construct( ) {}
/**
* Connects to a Redis instance.
*
* @param string $host can be a host, or the path to a unix domain socket
* @param int $port optional
* @param float $timeout value in seconds (optional, default is 0.0 meaning unlimited)
* @return bool TRUE on success, FALSE on error.
* <pre>
* $redis->connect('127.0.0.1', 6379);
* $redis->connect('127.0.0.1'); // port 6379 by default
* $redis->connect('127.0.0.1', 6379, 2.5); // 2.5 sec timeout.
* $redis->connect('/tmp/redis.sock'); // unix domain socket.
* </pre>
*/
public function connect( $host, $port = 6379, $timeout = 0.0 ) {}
/**
* Set the string value in argument as value of the key, with a time to live.
*
* @param string $key
* @param int $ttl in milliseconds
* @param string $value
* @return bool: TRUE if the command is successful.
* @link http://redis.io/commands/setex
* $redis->psetex('key', 100, 'value'); // sets key → value, with 0.1 sec TTL.
*/
public function psetex($key, $ttl, $value) {}
/**
* Scan a set for members.
*
* @see scan()
* @param string $key
* @param int $iterator
* @param string $pattern
* @param int $count
* @return array|bool
*/
public function sScan($key, $iterator, $pattern = '', $count = 0) {}
/**
* Scan the keyspace for keys.
*
* @param int $iterator
* @param string $pattern
* @param int $count How many keys to return in a go (only a sugestion to Redis)
* @return array|bool an array of keys or FALSE if there are no more keys
* @link http://redis.io/commands/scan
* <pre>
* $it = NULL; // Initialize our iterator to NULL
* $redis->setOption(Redis::OPT_SCAN, Redis::SCAN_RETRY); // retry when we get no keys back
* while($arr_keys = $redis->scan($it)) {
* foreach($arr_keys as $str_key) {
* echo "Here is a key: $str_key\n";
* }
* echo "No more keys to scan!\n";
* }
* </pre>
*/
public function scan($iterator, $pattern = '', $count = 0) {}
/**
* Scan a sorted set for members, with optional pattern and count.
*
* @see scan()
* @param string $key
* @param int $iterator
* @param string $pattern
* @param int $count
* @return array|bool
*/
public function zScan($key, $iterator, $pattern = '', $count = 0) {}
/**
* Scan a HASH value for members, with an optional pattern and count.
*
* @see scan()
* @param string $key
* @param int $iterator
* @param string $pattern
* @param int $count
* @return array
*/
public function hScan($key, $iterator, $pattern = '', $count = 0) {}
/**
* Issue the CLIENT command with various arguments.
* @param string $command list | getname | setname | kill
* @param string $arg
* @return mixed
* @link http://redis.io/commands/client-list
* @link http://redis.io/commands/client-getname
* @link http://redis.io/commands/client-setname
* @link http://redis.io/commands/client-kill
* <pre>
* $redis->client('list');
* $redis->client('getname');
* $redis->client('setname', 'somename');
* $redis->client('kill', <ip:port>);
* </pre>
*
*
* CLIENT LIST will return an array of arrays with client information.
* CLIENT GETNAME will return the client name or false if none has been set
* CLIENT SETNAME will return true if it can be set and false if not
* CLIENT KILL will return true if the client can be killed, and false if not
*/
public function client($command, $arg = '') {}
/**
* Access the Redis slow log.
*
* @param string $command get | len | reset
* @return mixed
* @link http://redis.io/commands/slowlog
* <pre>
* // Get ten slowlog entries
* $redis->slowlog('get', 10);
*
* // Get the default number of slowlog entries
* $redis->slowlog('get');
*
* // Reset our slowlog
* $redis->slowlog('reset');
*
* // Retrieve slowlog length
* $redis->slowlog('len');
* </pre>
*/
public function slowlog($command) {}
/**
* @see connect()
* @param string $host
* @param int $port
* @param float $timeout
*/
public function open( $host, $port = 6379, $timeout = 0.0 ) {}
/**
* Connects to a Redis instance or reuse a connection already established with pconnect/popen.
*
* The connection will not be closed on close or end of request until the php process ends.
* So be patient on to many open FD's (specially on redis server side) when using persistent connections on
* many servers connecting to one redis server.
*
* Also more than one persistent connection can be made identified by either host + port + timeout
* or unix socket + timeout.
*
* This feature is not available in threaded versions. pconnect and popen then working like their non persistent
* equivalents.
*
* @param string $host can be a host, or the path to a unix domain socket
* @param int $port optional
* @param float $timeout value in seconds (optional, default is 0 meaning unlimited)
* @return bool TRUE on success, FALSE on ertcnror.
* <pre>
* $redis->connect('127.0.0.1', 6379);
* $redis->connect('127.0.0.1'); // port 6379 by default
* $redis->connect('127.0.0.1', 6379, 2.5); // 2.5 sec timeout.
* $redis->connect('/tmp/redis.sock'); // unix domain socket.
* </pre>
*/
public function pconnect( $host, $port = 6379, $timeout = 0.0 ) {}
/**
* @see pconnect()
* @param string $host
* @param int $port
* @param float $timeout
*/
public function popen( $host, $port = 6379, $timeout = 0.0 ) {}
/**
* Disconnects from the Redis instance, except when pconnect is used.
*/
public function close( ) {}
/**
* Set client option.
*
* @param string $name parameter name
* @param string $value parameter value
* @return bool: TRUE on success, FALSE on error.
* @example
* <pre>
* $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_NONE); // don't serialize data
* $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_PHP); // use built-in serialize/unserialize
* $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_IGBINARY); // use igBinary serialize/unserialize
* $redis->setOption(Redis::OPT_PREFIX, 'myAppName:'); // use custom prefix on all keys
* </pre>
*/
public function setOption( $name, $value ) {}
/**
* Get client option
*
* @param string $name parameter name
* @return int Parameter value.
* @example
* // return Redis::SERIALIZER_NONE, Redis::SERIALIZER_PHP, or Redis::SERIALIZER_IGBINARY.
* $redis->getOption(Redis::OPT_SERIALIZER);
*/
public function getOption( $name ) {}
/**
* Check the current connection status
*
* @return string STRING: +PONG on success. Throws a RedisException object on connectivity error, as described above.
* @link http://redis.io/commands/ping
*/
public function ping( ) {}
/**
* Get the value related to the specified key
*
* @param string $key
* @return string|bool: If key didn't exist, FALSE is returned. Otherwise, the value related to this key is returned.
* @link http://redis.io/commands/get
* @example $redis->get('key');
*/
public function get( $key ) {}
/**
* Set the string value in argument as value of the key.
*
* @param string $key
* @param string $value
* @param int $timeout [optional] Calling setex() is preferred if you want a timeout.
* @return bool: TRUE if the command is successful.
* @link http://redis.io/commands/set
* @example $redis->set('key', 'value');
*/
public function set( $key, $value, $timeout = 0 ) {}
/**
* Set the string value in argument as value of the key, with a time to live.
*
* @param string $key
* @param int $ttl
* @param string $value
* @return bool: TRUE if the command is successful.
* @link http://redis.io/commands/setex
* @example $redis->setex('key', 3600, 'value'); // sets key → value, with 1h TTL.
*/
public function setex( $key, $ttl, $value ) {}
/**
* Set the string value in argument as value of the key if the key doesn't already exist in the database.
*
* @param string $key
* @param string $value
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/setnx
* @example
* <pre>
* $redis->setnx('key', 'value'); // return TRUE
* $redis->setnx('key', 'value'); // return FALSE
* </pre>
*/
public function setnx( $key, $value ) {}
/**
* Remove specified keys.
*
* @param int|array $key1 An array of keys, or an undefined number of parameters, each a key: key1 key2 key3 ... keyN
* @param string $key2 ...
* @param string $key3 ...
* @return int Number of keys deleted.
* @link http://redis.io/commands/del
* @example
* <pre>
* $redis->set('key1', 'val1');
* $redis->set('key2', 'val2');
* $redis->set('key3', 'val3');
* $redis->set('key4', 'val4');
* $redis->delete('key1', 'key2'); // return 2
* $redis->delete(array('key3', 'key4')); // return 2
* </pre>
*/
public function del( $key1, $key2 = null, $key3 = null ) {}
/**
* @see del()
* @param $key1
* @param null $key2
* @param null $key3
*/
public function delete( $key1, $key2 = null, $key3 = null ) {}
/**
* Enter and exit transactional mode.
*
* @internal param Redis::MULTI|Redis::PIPELINE
* Defaults to Redis::MULTI.
* A Redis::MULTI block of commands runs as a single transaction;
* a Redis::PIPELINE block is simply transmitted faster to the server, but without any guarantee of atomicity.
* discard cancels a transaction.
* @return Redis returns the Redis instance and enters multi-mode.
* Once in multi-mode, all subsequent method calls return the same object until exec() is called.
* @link http://redis.io/commands/multi
* @example
* <pre>
* $ret = $redis->multi()
* ->set('key1', 'val1')
* ->get('key1')
* ->set('key2', 'val2')
* ->get('key2')
* ->exec();
*
* //$ret == array (
* // 0 => TRUE,
* // 1 => 'val1',
* // 2 => TRUE,
* // 3 => 'val2');
* </pre>
*/
public function multi( ) {}
/**
* @see multi()
* @link http://redis.io/commands/exec
*/
public function exec( ) {}
/**
* @see multi()
* @link http://redis.io/commands/discard
*/
public function discard( ) {}
/**
* Watches a key for modifications by another client. If the key is modified between WATCH and EXEC,
* the MULTI/EXEC transaction will fail (return FALSE). unwatch cancels all the watching of all keys by this client.
* @param string | array $key: a list of keys
* @return void
* @link http://redis.io/commands/watch
* @example
* <pre>
* $redis->watch('x');
* // long code here during the execution of which other clients could well modify `x`
* $ret = $redis->multi()
* ->incr('x')
* ->exec();
* // $ret = FALSE if x has been modified between the call to WATCH and the call to EXEC.
* </pre>
*/
public function watch( $key ) {}
/**
* @see watch()
* @link http://redis.io/commands/unwatch
*/
public function unwatch( ) {}
/**
* Subscribe to channels. Warning: this function will probably change in the future.
*
* @param array $channels an array of channels to subscribe to
* @param string | array $callback either a string or an array($instance, 'method_name').
* The callback function receives 3 parameters: the redis instance, the channel name, and the message.
* @link http://redis.io/commands/subscribe
* @example
* <pre>
* function f($redis, $chan, $msg) {
* switch($chan) {
* case 'chan-1':
* ...
* break;
*
* case 'chan-2':
* ...
* break;
*
* case 'chan-2':
* ...
* break;
* }
* }
*
* $redis->subscribe(array('chan-1', 'chan-2', 'chan-3'), 'f'); // subscribe to 3 chans
* </pre>
*/
public function subscribe( $channels, $callback ) {}
/**
* Subscribe to channels by pattern
*
* @param array $patterns The number of elements removed from the set.
* @param string|array $callback Either a string or an array with an object and method.
* The callback will get four arguments ($redis, $pattern, $channel, $message)
* @link http://redis.io/commands/psubscribe
* @example
* <pre>
* function psubscribe($redis, $pattern, $chan, $msg) {
* echo "Pattern: $pattern\n";
* echo "Channel: $chan\n";
* echo "Payload: $msg\n";
* }
* </pre>
*/
public function psubscribe( $patterns, $callback ) {}
/**
* Publish messages to channels. Warning: this function will probably change in the future.
*
* @param string $channel a channel to publish to
* @param string $message string
* @link http://redis.io/commands/publish
* @return int Number of clients that received the message
* @example $redis->publish('chan-1', 'hello, world!'); // send message.
*/
public function publish( $channel, $message ) {}
/**
* Verify if the specified key exists.
*
* @param string $key
* @return bool: If the key exists, return TRUE, otherwise return FALSE.
* @link http://redis.io/commands/exists
* @example
* <pre>
* $redis->set('key', 'value');
* $redis->exists('key'); // TRUE
* $redis->exists('NonExistingKey'); // FALSE
* </pre>
*/
public function exists( $key ) {}
/**
* Increment the number stored at key by one.
*
* @param string $key
* @return int the new value
* @link http://redis.io/commands/incr
* @example
* <pre>
* $redis->incr('key1'); // key1 didn't exists, set to 0 before the increment and now has the value 1
* $redis->incr('key1'); // 2
* $redis->incr('key1'); // 3
* $redis->incr('key1'); // 4
* </pre>
*/
public function incr( $key ) {}
/**
* Increment the float value of a key by the given amount
*
* @param string $key
* @param float $increment
* @return float
* @link http://redis.io/commands/incrbyfloat
* @example
* <pre>
* $redis = new Redis();
* $redis->connect('127.0.0.1');
* $redis->set('x', 3);
* var_dump( $redis->incrByFloat('x', 1.5) ); // float(4.5)
*
* // ! SIC
* var_dump( $redis->get('x') ); // string(3) "4.5"
* </pre>
*/
public function incrByFloat( $key, $increment ) {}
/**
* Increment the number stored at key by one. If the second argument is filled, it will be used as the integer
* value of the increment.
*
* @param string $key key
* @param int $value value that will be added to key (only for incrBy)
* @return int the new value
* @link http://redis.io/commands/incrby
* @example
* <pre>
* $redis->incr('key1'); // key1 didn't exists, set to 0 before the increment and now has the value 1
* $redis->incr('key1'); // 2
* $redis->incr('key1'); // 3
* $redis->incr('key1'); // 4
* $redis->incrBy('key1', 10); // 14
* </pre>
*/
public function incrBy( $key, $value ) {}
/**
* Decrement the number stored at key by one.
*
* @param string $key
* @return int the new value
* @link http://redis.io/commands/decr
* @example
* <pre>
* $redis->decr('key1'); // key1 didn't exists, set to 0 before the increment and now has the value -1
* $redis->decr('key1'); // -2
* $redis->decr('key1'); // -3
* </pre>
*/
public function decr( $key ) {}
/**
* Decrement the number stored at key by one. If the second argument is filled, it will be used as the integer
* value of the decrement.
*
* @param string $key
* @param int $value that will be substracted to key (only for decrBy)
* @return int the new value
* @link http://redis.io/commands/decrby
* @example
* <pre>
* $redis->decr('key1'); // key1 didn't exists, set to 0 before the increment and now has the value -1
* $redis->decr('key1'); // -2
* $redis->decr('key1'); // -3
* $redis->decrBy('key1', 10); // -13
* </pre>
*/
public function decrBy( $key, $value ) {}
/**
* Get the values of all the specified keys. If one or more keys dont exist, the array will contain FALSE at the
* position of the key.
*
* @param array $keys Array containing the list of the keys
* @return array Array containing the values related to keys in argument
* @example
* <pre>
* $redis->set('key1', 'value1');
* $redis->set('key2', 'value2');
* $redis->set('key3', 'value3');
* $redis->getMultiple(array('key1', 'key2', 'key3')); // array('value1', 'value2', 'value3');
* $redis->getMultiple(array('key0', 'key1', 'key5')); // array(`FALSE`, 'value2', `FALSE`);
* </pre>
*/
public function getMultiple( array $keys ) {}
/**
* Adds the string values to the head (left) of the list. Creates the list if the key didn't exist.
* If the key exists and is not a list, FALSE is returned.
*
* @param string $key
* @param string $value1 String, value to push in key
* @param string $value2 Optional
* @param string $valueN Optional
* @return int The new length of the list in case of success, FALSE in case of Failure.
* @link http://redis.io/commands/lpush
* @example
* <pre>
* $redis->lPush('l', 'v1', 'v2', 'v3', 'v4') // int(4)
* var_dump( $redis->lRange('l', 0, -1) );
* //// Output:
* // array(4) {
* // [0]=> string(2) "v4"
* // [1]=> string(2) "v3"
* // [2]=> string(2) "v2"
* // [3]=> string(2) "v1"
* // }
* </pre>
*/
public function lPush( $key, $value1, $value2 = null, $valueN = null ) {}
/**
* Adds the string values to the tail (right) of the list. Creates the list if the key didn't exist.
* If the key exists and is not a list, FALSE is returned.
*
* @param string $key
* @param string $value1 String, value to push in key
* @param string $value2 Optional
* @param string $valueN Optional
* @return int The new length of the list in case of success, FALSE in case of Failure.
* @link http://redis.io/commands/rpush
* @example
* <pre>
* $redis->rPush('l', 'v1', 'v2', 'v3', 'v4'); // int(4)
* var_dump( $redis->lRange('l', 0, -1) );
* //// Output:
* // array(4) {
* // [0]=> string(2) "v1"
* // [1]=> string(2) "v2"
* // [2]=> string(2) "v3"
* // [3]=> string(2) "v4"
* // }
* </pre>
*/
public function rPush( $key, $value1, $value2 = null, $valueN = null ) {}
/**
* Adds the string value to the head (left) of the list if the list exists.
*
* @param string $key
* @param string $value String, value to push in key
* @return int The new length of the list in case of success, FALSE in case of Failure.
* @link http://redis.io/commands/lpushx
* @example
* <pre>
* $redis->delete('key1');
* $redis->lPushx('key1', 'A'); // returns 0
* $redis->lPush('key1', 'A'); // returns 1
* $redis->lPushx('key1', 'B'); // returns 2
* $redis->lPushx('key1', 'C'); // returns 3
* // key1 now points to the following list: [ 'A', 'B', 'C' ]
* </pre>
*/
public function lPushx( $key, $value ) {}
/**
* Adds the string value to the tail (right) of the list if the ist exists. FALSE in case of Failure.
*
* @param string $key
* @param string $value String, value to push in key
* @return int The new length of the list in case of success, FALSE in case of Failure.
* @link http://redis.io/commands/rpushx
* @example
* <pre>
* $redis->delete('key1');
* $redis->rPushx('key1', 'A'); // returns 0
* $redis->rPush('key1', 'A'); // returns 1
* $redis->rPushx('key1', 'B'); // returns 2
* $redis->rPushx('key1', 'C'); // returns 3
* // key1 now points to the following list: [ 'A', 'B', 'C' ]
* </pre>
*/
public function rPushx( $key, $value ) {}
/**
* Returns and removes the first element of the list.
*
* @param string $key
* @return string if command executed successfully BOOL FALSE in case of failure (empty list)
* @link http://redis.io/commands/lpop
* @example
* <pre>
* $redis->rPush('key1', 'A');
* $redis->rPush('key1', 'B');
* $redis->rPush('key1', 'C'); // key1 => [ 'A', 'B', 'C' ]
* $redis->lPop('key1'); // key1 => [ 'B', 'C' ]
* </pre>
*/
public function lPop( $key ) {}
/**
* Returns and removes the last element of the list.
*
* @param string $key
* @return string if command executed successfully BOOL FALSE in case of failure (empty list)
* @link http://redis.io/commands/rpop
* @example
* <pre>
* $redis->rPush('key1', 'A');
* $redis->rPush('key1', 'B');
* $redis->rPush('key1', 'C'); // key1 => [ 'A', 'B', 'C' ]
* $redis->rPop('key1'); // key1 => [ 'A', 'B' ]
* </pre>
*/
public function rPop( $key ) {}
/**
* Is a blocking lPop primitive. If at least one of the lists contains at least one element,
* the element will be popped from the head of the list and returned to the caller.
* Il all the list identified by the keys passed in arguments are empty, blPop will block
* during the specified timeout until an element is pushed to one of those lists. This element will be popped.
*
* @param array $keys Array containing the keys of the lists INTEGER Timeout
* Or STRING Key1 STRING Key2 STRING Key3 ... STRING Keyn INTEGER Timeout
* @return array array('listName', 'element')
* @link http://redis.io/commands/blpop
* @example
* <pre>
* // Non blocking feature
* $redis->lPush('key1', 'A');
* $redis->delete('key2');
*
* $redis->blPop('key1', 'key2', 10); // array('key1', 'A')
* // OR
* $redis->blPop(array('key1', 'key2'), 10); // array('key1', 'A')
*
* $redis->brPop('key1', 'key2', 10); // array('key1', 'A')
* // OR
* $redis->brPop(array('key1', 'key2'), 10); // array('key1', 'A')
*
* // Blocking feature
*
* // process 1
* $redis->delete('key1');
* $redis->blPop('key1', 10);
* // blocking for 10 seconds
*
* // process 2
* $redis->lPush('key1', 'A');
*
* // process 1
* // array('key1', 'A') is returned
* </pre>
*/
public function blPop( array $keys ) {}
/**
* Is a blocking rPop primitive. If at least one of the lists contains at least one element,
* the element will be popped from the head of the list and returned to the caller.
* Il all the list identified by the keys passed in arguments are empty, brPop will
* block during the specified timeout until an element is pushed to one of those lists. T
* his element will be popped.
*
* @param array $keys Array containing the keys of the lists INTEGER Timeout
* Or STRING Key1 STRING Key2 STRING Key3 ... STRING Keyn INTEGER Timeout
* @return array array('listName', 'element')
* @link http://redis.io/commands/brpop
* @example
* <pre>
* // Non blocking feature
* $redis->lPush('key1', 'A');
* $redis->delete('key2');
*
* $redis->blPop('key1', 'key2', 10); // array('key1', 'A')
* // OR
* $redis->blPop(array('key1', 'key2'), 10); // array('key1', 'A')
*
* $redis->brPop('key1', 'key2', 10); // array('key1', 'A')
* // OR
* $redis->brPop(array('key1', 'key2'), 10); // array('key1', 'A')
*
* // Blocking feature
*
* // process 1
* $redis->delete('key1');
* $redis->blPop('key1', 10);
* // blocking for 10 seconds
*
* // process 2
* $redis->lPush('key1', 'A');
*
* // process 1
* // array('key1', 'A') is returned
* </pre>
*/
public function brPop( array $keys ) {}
/**
* Returns the size of a list identified by Key. If the list didn't exist or is empty,
* the command returns 0. If the data type identified by Key is not a list, the command return FALSE.
*
* @param string $key
* @return int The size of the list identified by Key exists.
* bool FALSE if the data type identified by Key is not list
* @link http://redis.io/commands/llen
* @example
* <pre>
* $redis->rPush('key1', 'A');
* $redis->rPush('key1', 'B');
* $redis->rPush('key1', 'C'); // key1 => [ 'A', 'B', 'C' ]
* $redis->lLen('key1'); // 3
* $redis->rPop('key1');
* $redis->lLen('key1'); // 2
* </pre>
*/
public function lLen( $key ) {}
/**
* @see lLen()
* @param string $key
* @param int $index
* @link http://redis.io/commands/llen
*/
public function lSize( $key ) {}
/**
* Return the specified element of the list stored at the specified key.
* 0 the first element, 1 the second ... -1 the last element, -2 the penultimate ...
* Return FALSE in case of a bad index or a key that doesn't point to a list.
* @param string $key
* @param int $index
* @return String the element at this index
* Bool FALSE if the key identifies a non-string data type, or no value corresponds to this index in the list Key.
* @link http://redis.io/commands/lindex
* @example
* <pre>
* $redis->rPush('key1', 'A');
* $redis->rPush('key1', 'B');
* $redis->rPush('key1', 'C'); // key1 => [ 'A', 'B', 'C' ]
* $redis->lGet('key1', 0); // 'A'
* $redis->lGet('key1', -1); // 'C'
* $redis->lGet('key1', 10); // `FALSE`
* </pre>
*/
public function lIndex( $key, $index ) {}
/**
* @see lIndex()
* @param string $key
* @param int $index
* @link http://redis.io/commands/lindex
*/
public function lGet( $key, $index ) {}
/**
* Set the list at index with the new value.
*
* @param string $key
* @param int $index
* @param string $value
* @return BOOL TRUE if the new value is setted. FALSE if the index is out of range, or data type identified by key
* is not a list.
* @link http://redis.io/commands/lset
* @example
* <pre>
* $redis->rPush('key1', 'A');
* $redis->rPush('key1', 'B');
* $redis->rPush('key1', 'C'); // key1 => [ 'A', 'B', 'C' ]
* $redis->lGet('key1', 0); // 'A'
* $redis->lSet('key1', 0, 'X');
* $redis->lGet('key1', 0); // 'X'
* </pre>
*/
public function lSet( $key, $index, $value ) {}
/**
* Returns the specified elements of the list stored at the specified key in
* the range [start, end]. start and stop are interpretated as indices: 0 the first element,
* 1 the second ... -1 the last element, -2 the penultimate ...
* @param string $key
* @param int $start
* @param int $end
* @return array containing the values in specified range.
* @link http://redis.io/commands/lrange
* @example
* <pre>
* $redis->rPush('key1', 'A');
* $redis->rPush('key1', 'B');
* $redis->rPush('key1', 'C');
* $redis->lRange('key1', 0, -1); // array('A', 'B', 'C')
* </pre>
*/
public function lRange( $key, $start, $end ) {}
/**
* @see lRange()
* @link http://redis.io/commands/lrange
* @param string $key
* @param int $start
* @param int $end
*/
public function lGetRange( $key, $start, $end ) {}
/**
* Trims an existing list so that it will contain only a specified range of elements.
*
* @param string $key
* @param int $start
* @param int $stop
* @return array Bool return FALSE if the key identify a non-list value.
* @link http://redis.io/commands/ltrim
* @example
* <pre>
* $redis->rPush('key1', 'A');
* $redis->rPush('key1', 'B');
* $redis->rPush('key1', 'C');
* $redis->lRange('key1', 0, -1); // array('A', 'B', 'C')
* $redis->lTrim('key1', 0, 1);
* $redis->lRange('key1', 0, -1); // array('A', 'B')
* </pre>
*/
public function lTrim( $key, $start, $stop ) {}
/**
* @see lTrim()
* @link http://redis.io/commands/ltrim
* @param string $key
* @param int $start
* @param int $stop
*/
public function listTrim( $key, $start, $stop ) {}
/**
* Removes the first count occurences of the value element from the list.
* If count is zero, all the matching elements are removed. If count is negative,
* elements are removed from tail to head.
*
* @param string $key
* @param string $value
* @param int $count
* @return int the number of elements to remove
* bool FALSE if the value identified by key is not a list.
* @link http://redis.io/commands/lrem
* @example
* <pre>
* $redis->lPush('key1', 'A');
* $redis->lPush('key1', 'B');
* $redis->lPush('key1', 'C');
* $redis->lPush('key1', 'A');
* $redis->lPush('key1', 'A');
*
* $redis->lRange('key1', 0, -1); // array('A', 'A', 'C', 'B', 'A')
* $redis->lRem('key1', 'A', 2); // 2
* $redis->lRange('key1', 0, -1); // array('C', 'B', 'A')
* </pre>
*/
public function lRem( $key, $value, $count ) {}
/**
* @see lRem
* @link http://redis.io/commands/lremove
* @param string $key
* @param string $value
* @param int $count
*/
public function lRemove( $key, $value, $count ) {}
/**
* Insert value in the list before or after the pivot value. the parameter options
* specify the position of the insert (before or after). If the list didn't exists,
* or the pivot didn't exists, the value is not inserted.
*
* @param string $key
* @param int $position Redis::BEFORE | Redis::AFTER
* @param string $pivot
* @param string $value
* @return int The number of the elements in the list, -1 if the pivot didn't exists.
* @link http://redis.io/commands/linsert
* @example
* <pre>
* $redis->delete('key1');
* $redis->lInsert('key1', Redis::AFTER, 'A', 'X'); // 0
*
* $redis->lPush('key1', 'A');
* $redis->lPush('key1', 'B');
* $redis->lPush('key1', 'C');
*
* $redis->lInsert('key1', Redis::BEFORE, 'C', 'X'); // 4
* $redis->lRange('key1', 0, -1); // array('A', 'B', 'X', 'C')
*
* $redis->lInsert('key1', Redis::AFTER, 'C', 'Y'); // 5
* $redis->lRange('key1', 0, -1); // array('A', 'B', 'X', 'C', 'Y')
*
* $redis->lInsert('key1', Redis::AFTER, 'W', 'value'); // -1
* </pre>
*/
public function lInsert( $key, $position, $pivot, $value ) {}
/**
* Adds a values to the set value stored at key.
* If this value is already in the set, FALSE is returned.
*
* @param string $key Required key
* @param string $value1 Required value
* @param string $value2 Optional value
* @param string $valueN Optional value
* @return int The number of elements added to the set
* @link http://redis.io/commands/sadd
* @example
* <pre>
* $redis->sAdd('k', 'v1'); // int(1)
* $redis->sAdd('k', 'v1', 'v2', 'v3'); // int(2)
* </pre>
*/
public function sAdd( $key, $value1, $value2 = null, $valueN = null ) {}
/**
* Removes the specified members from the set value stored at key.
*
* @param string $key
* @param string $member1
* @param string $member2
* @param string $memberN
* @return int The number of elements removed from the set.
* @link http://redis.io/commands/srem
* @example
* <pre>
* var_dump( $redis->sAdd('k', 'v1', 'v2', 'v3') ); // int(3)
* var_dump( $redis->sRem('k', 'v2', 'v3') ); // int(2)
* var_dump( $redis->sMembers('k') );
* //// Output:
* // array(1) {
* // [0]=> string(2) "v1"
* // }
* </pre>
*/
public function sRem( $key, $member1, $member2 = null, $memberN = null ) {}
/**
* @see sRem()
* @link http://redis.io/commands/srem
* @param string $key
* @param string $member1
* @param string $member2
* @param string $memberN
*/
public function sRemove( $key, $member1, $member2 = null, $memberN = null ) {}
/**
* Moves the specified member from the set at srcKey to the set at dstKey.
*
* @param string $srcKey
* @param string $dstKey
* @param string $member
* @return bool If the operation is successful, return TRUE.
* If the srcKey and/or dstKey didn't exist, and/or the member didn't exist in srcKey, FALSE is returned.
* @link http://redis.io/commands/smove
* @example
* <pre>
* $redis->sAdd('key1' , 'set11');
* $redis->sAdd('key1' , 'set12');
* $redis->sAdd('key1' , 'set13'); // 'key1' => {'set11', 'set12', 'set13'}
* $redis->sAdd('key2' , 'set21');
* $redis->sAdd('key2' , 'set22'); // 'key2' => {'set21', 'set22'}
* $redis->sMove('key1', 'key2', 'set13'); // 'key1' => {'set11', 'set12'}
* // 'key2' => {'set21', 'set22', 'set13'}
* </pre>
*/
public function sMove( $srcKey, $dstKey, $member ) {}
/**
* Checks if value is a member of the set stored at the key key.
*
* @param string $key
* @param string $value
* @return bool TRUE if value is a member of the set at key key, FALSE otherwise.
* @link http://redis.io/commands/sismember
* @example
* <pre>
* $redis->sAdd('key1' , 'set1');
* $redis->sAdd('key1' , 'set2');
* $redis->sAdd('key1' , 'set3'); // 'key1' => {'set1', 'set2', 'set3'}
*
* $redis->sIsMember('key1', 'set1'); // TRUE
* $redis->sIsMember('key1', 'setX'); // FALSE
* </pre>
*/
public function sIsMember( $key, $value ) {}
/**
* @see sIsMember()
* @link http://redis.io/commands/sismember
* @param string $key
* @param string $value
*/
public function sContains( $key, $value ) {}
/**
* Returns the cardinality of the set identified by key.
*
* @param string $key
* @return int the cardinality of the set identified by key, 0 if the set doesn't exist.
* @link http://redis.io/commands/scard
* @example
* <pre>
* $redis->sAdd('key1' , 'set1');
* $redis->sAdd('key1' , 'set2');
* $redis->sAdd('key1' , 'set3'); // 'key1' => {'set1', 'set2', 'set3'}
* $redis->sCard('key1'); // 3
* $redis->sCard('keyX'); // 0
* </pre>
*/
public function sCard( $key ) {}
/**
* Removes and returns a random element from the set value at Key.
*
* @param string $key
* @return string "popped" value
* bool FALSE if set identified by key is empty or doesn't exist.
* @link http://redis.io/commands/spop
* @example
* <pre>
* $redis->sAdd('key1' , 'set1');
* $redis->sAdd('key1' , 'set2');
* $redis->sAdd('key1' , 'set3'); // 'key1' => {'set3', 'set1', 'set2'}
* $redis->sPop('key1'); // 'set1', 'key1' => {'set3', 'set2'}
* $redis->sPop('key1'); // 'set3', 'key1' => {'set2'}
* </pre>
*/
public function sPop( $key ) {}
/**
* Returns a random element from the set value at Key, without removing it.
*
* @param string $key
* @return string value from the set
* bool FALSE if set identified by key is empty or doesn't exist.
* @link http://redis.io/commands/srandmember
* @example
* <pre>
* $redis->sAdd('key1' , 'set1');
* $redis->sAdd('key1' , 'set2');
* $redis->sAdd('key1' , 'set3'); // 'key1' => {'set3', 'set1', 'set2'}
* $redis->sRandMember('key1'); // 'set1', 'key1' => {'set3', 'set1', 'set2'}
* $redis->sRandMember('key1'); // 'set3', 'key1' => {'set3', 'set1', 'set2'}
* </pre>
*/
public function sRandMember( $key ) {}
/**
* Returns the members of a set resulting from the intersection of all the sets
* held at the specified keys. If just a single key is specified, then this command
* produces the members of this set. If one of the keys is missing, FALSE is returned.
*
* @param string $key1 keys identifying the different sets on which we will apply the intersection.
* @param string $key2 ...
* @param string $keyN ...
* @return array, contain the result of the intersection between those keys.
* If the intersection between the different sets is empty, the return value will be empty array.
* @link http://redis.io/commands/sinterstore
* @example
* <pre>
* $redis->sAdd('key1', 'val1');
* $redis->sAdd('key1', 'val2');
* $redis->sAdd('key1', 'val3');
* $redis->sAdd('key1', 'val4');
*
* $redis->sAdd('key2', 'val3');
* $redis->sAdd('key2', 'val4');
*
* $redis->sAdd('key3', 'val3');
* $redis->sAdd('key3', 'val4');
*
* var_dump($redis->sInter('key1', 'key2', 'key3'));
*
* //array(2) {
* // [0]=>
* // string(4) "val4"
* // [1]=>
* // string(4) "val3"
* //}
* </pre>
*/
public function sInter( $key1, $key2, $keyN = null ) {}
/**
* Performs a sInter command and stores the result in a new set.
*
* @param string $dstKey the key to store the diff into.
* @param string $key1 are intersected as in sInter.
* @param string $key2 ...
* @param string $keyN ...
* @return int: The cardinality of the resulting set, or FALSE in case of a missing key.
* @link http://redis.io/commands/sinterstore
* @example
* <pre>
* $redis->sAdd('key1', 'val1');
* $redis->sAdd('key1', 'val2');
* $redis->sAdd('key1', 'val3');
* $redis->sAdd('key1', 'val4');
*
* $redis->sAdd('key2', 'val3');
* $redis->sAdd('key2', 'val4');
*
* $redis->sAdd('key3', 'val3');
* $redis->sAdd('key3', 'val4');
*
* var_dump($redis->sInterStore('output', 'key1', 'key2', 'key3'));
* var_dump($redis->sMembers('output'));
*
* //int(2)
* //
* //array(2) {
* // [0]=>
* // string(4) "val4"
* // [1]=>
* // string(4) "val3"
* //}
* </pre>
*/
public function sInterStore( $dstKey, $key1, $key2, $keyN = null ) {}
/**
* Performs the union between N sets and returns it.
*
* @param string $key1 Any number of keys corresponding to sets in redis.
* @param string $key2 ...
* @param string $keyN ...
* @return array of strings: The union of all these sets.
* @link http://redis.io/commands/sunionstore
* @example
* <pre>
* $redis->delete('s0', 's1', 's2');
*
* $redis->sAdd('s0', '1');
* $redis->sAdd('s0', '2');
* $redis->sAdd('s1', '3');
* $redis->sAdd('s1', '1');
* $redis->sAdd('s2', '3');
* $redis->sAdd('s2', '4');
*
* var_dump($redis->sUnion('s0', 's1', 's2'));
*
* array(4) {
* // [0]=>
* // string(1) "3"
* // [1]=>
* // string(1) "4"
* // [2]=>
* // string(1) "1"
* // [3]=>
* // string(1) "2"
* //}
* </pre>
*/
public function sUnion( $key1, $key2, $keyN = null ) {}
/**
* Performs the same action as sUnion, but stores the result in the first key
*
* @param string $dstKey the key to store the diff into.
* @param string $key1 Any number of keys corresponding to sets in redis.
* @param string $key2 ...
* @param string $keyN ...
* @return int Any number of keys corresponding to sets in redis.
* @link http://redis.io/commands/sunionstore
* @example
* <pre>
* $redis->delete('s0', 's1', 's2');
*
* $redis->sAdd('s0', '1');
* $redis->sAdd('s0', '2');
* $redis->sAdd('s1', '3');
* $redis->sAdd('s1', '1');
* $redis->sAdd('s2', '3');
* $redis->sAdd('s2', '4');
*
* var_dump($redis->sUnionStore('dst', 's0', 's1', 's2'));
* var_dump($redis->sMembers('dst'));
*
* //int(4)
* //array(4) {
* // [0]=>
* // string(1) "3"
* // [1]=>
* // string(1) "4"
* // [2]=>
* // string(1) "1"
* // [3]=>
* // string(1) "2"
* //}
* </pre>
*/
public function sUnionStore( $dstKey, $key1, $key2, $keyN = null ) {}
/**
* Performs the difference between N sets and returns it.
*
* @param string $key1 Any number of keys corresponding to sets in redis.
* @param string $key2 ...
* @param string $keyN ...
* @return array of strings: The difference of the first set will all the others.
* @link http://redis.io/commands/sdiff
* @example
* <pre>
* $redis->delete('s0', 's1', 's2');
*
* $redis->sAdd('s0', '1');
* $redis->sAdd('s0', '2');
* $redis->sAdd('s0', '3');
* $redis->sAdd('s0', '4');
*
* $redis->sAdd('s1', '1');
* $redis->sAdd('s2', '3');
*
* var_dump($redis->sDiff('s0', 's1', 's2'));
*
* //array(2) {
* // [0]=>
* // string(1) "4"
* // [1]=>
* // string(1) "2"
* //}
* </pre>
*/
public function sDiff( $key1, $key2, $keyN = null ) {}
/**
* Performs the same action as sDiff, but stores the result in the first key
*
* @param string $dstKey the key to store the diff into.
* @param string $key1 Any number of keys corresponding to sets in redis
* @param string $key2 ...
* @param string $keyN ...
* @return int: The cardinality of the resulting set, or FALSE in case of a missing key.
* @link http://redis.io/commands/sdiffstore
* @example
* <pre>
* $redis->delete('s0', 's1', 's2');
*
* $redis->sAdd('s0', '1');
* $redis->sAdd('s0', '2');
* $redis->sAdd('s0', '3');
* $redis->sAdd('s0', '4');
*
* $redis->sAdd('s1', '1');
* $redis->sAdd('s2', '3');
*
* var_dump($redis->sDiffStore('dst', 's0', 's1', 's2'));
* var_dump($redis->sMembers('dst'));
*
* //int(2)
* //array(2) {
* // [0]=>
* // string(1) "4"
* // [1]=>
* // string(1) "2"
* //}
* </pre>
*/
public function sDiffStore( $dstKey, $key1, $key2, $keyN = null ) {}
/**
* Returns the contents of a set.
*
* @param string $key
* @return array An array of elements, the contents of the set.
* @link http://redis.io/commands/smembers
* @example
* <pre>
* $redis->delete('s');
* $redis->sAdd('s', 'a');
* $redis->sAdd('s', 'b');
* $redis->sAdd('s', 'a');
* $redis->sAdd('s', 'c');
* var_dump($redis->sMembers('s'));
*
* //array(3) {
* // [0]=>
* // string(1) "c"
* // [1]=>
* // string(1) "a"
* // [2]=>
* // string(1) "b"
* //}
* // The order is random and corresponds to redis' own internal representation of the set structure.
* </pre>
*/
public function sMembers( $key ) {}
/**
* @see sMembers()
* @param string $key
* @link http://redis.io/commands/smembers
*/
public function sGetMembers( $key ) {}
/**
* Sets a value and returns the previous entry at that key.
*
* @param string $key
* @param string $value
* @return string A string, the previous value located at this key.
* @link http://redis.io/commands/getset
* @example
* <pre>
* $redis->set('x', '42');
* $exValue = $redis->getSet('x', 'lol'); // return '42', replaces x by 'lol'
* $newValue = $redis->get('x')' // return 'lol'
* </pre>
*/
public function getSet( $key, $value ) {}
/**
* Returns a random key.
*
* @return string: an existing key in redis.
* @link http://redis.io/commands/randomkey
* @example
* <pre>
* $key = $redis->randomKey();
* $surprise = $redis->get($key); // who knows what's in there.
* </pre>
*/
public function randomKey( ) {}
/**
* Switches to a given database.
*
* @param int $dbindex
* @return bool TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/select
* @example
* <pre>
* $redis->select(0); // switch to DB 0
* $redis->set('x', '42'); // write 42 to x
* $redis->move('x', 1); // move to DB 1
* $redis->select(1); // switch to DB 1
* $redis->get('x'); // will return 42
* </pre>
*/
public function select( $dbindex ) {}
/**
* Moves a key to a different database.
*
* @param string $key
* @param int $dbindex
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/move
* @example
* <pre>
* $redis->select(0); // switch to DB 0
* $redis->set('x', '42'); // write 42 to x
* $redis->move('x', 1); // move to DB 1
* $redis->select(1); // switch to DB 1
* $redis->get('x'); // will return 42
* </pre>
*/
public function move( $key, $dbindex ) {}
/**
* Renames a key.
*
* @param string $srcKey
* @param string $dstKey
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/rename
* @example
* <pre>
* $redis->set('x', '42');
* $redis->rename('x', 'y');
* $redis->get('y'); // → 42
* $redis->get('x'); // → `FALSE`
* </pre>
*/
public function rename( $srcKey, $dstKey ) {}
/**
* @see rename()
* @link http://redis.io/commands/rename
* @param string $srcKey
* @param string $dstKey
*/
public function renameKey( $srcKey, $dstKey ) {}
/**
* Renames a key.
*
* Same as rename, but will not replace a key if the destination already exists.
* This is the same behaviour as setNx.
*
* @param string $srcKey
* @param string $dstKey
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/renamenx
* @example
* <pre>
* $redis->set('x', '42');
* $redis->rename('x', 'y');
* $redis->get('y'); // → 42
* $redis->get('x'); // → `FALSE`
* </pre>
*/
public function renameNx( $srcKey, $dstKey ) {}
/**
* Sets an expiration date (a timeout) on an item.
*
* @param string $key The key that will disappear.
* @param int $ttl The key's remaining Time To Live, in seconds.
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/expire
* @example
* <pre>
* $redis->set('x', '42');
* $redis->setTimeout('x', 3); // x will disappear in 3 seconds.
* sleep(5); // wait 5 seconds
* $redis->get('x'); // will return `FALSE`, as 'x' has expired.
* </pre>
*/
public function expire( $key, $ttl ) {}
/**
* Sets an expiration date (a timeout in milliseconds) on an item.
*
* @param string $key The key that will disappear.
* @param int $pttl The key's remaining Time To Live, in milliseconds.
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/pexpire
* @example
* <pre>
* $redis->set('x', '42');
* $redis->pExpire('x', 11500); // x will disappear in 11500 milliseconds.
* $redis->ttl('x'); // 12
* $redis->pttl('x'); // 11500
* </pre>
*/
public function pExpire( $key, $ttl ) {}
/**
* @see expire()
* @param string $key
* @param int $ttl
* @link http://redis.io/commands/expire
*/
public function setTimeout( $key, $ttl ) {}
/**
* Sets an expiration date (a timestamp) on an item.
*
* @param string $key The key that will disappear.
* @param int $timestamp Unix timestamp. The key's date of death, in seconds from Epoch time.
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/expireat
* @example
* <pre>
* $redis->set('x', '42');
* $now = time(NULL); // current timestamp
* $redis->expireAt('x', $now + 3); // x will disappear in 3 seconds.
* sleep(5); // wait 5 seconds
* $redis->get('x'); // will return `FALSE`, as 'x' has expired.
* </pre>
*/
public function expireAt( $key, $timestamp ) {}
/**
* Sets an expiration date (a timestamp) on an item. Requires a timestamp in milliseconds
*
* @param string $key The key that will disappear.
* @param int $timestamp Unix timestamp. The key's date of death, in seconds from Epoch time.
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/pexpireat
* @example
* <pre>
* $redis->set('x', '42');
* $redis->pExpireAt('x', 1555555555005);
* echo $redis->ttl('x'); // 218270121
* echo $redis->pttl('x'); // 218270120575
* </pre>
*/
public function pExpireAt( $key, $timestamp ) {}
/**
* Returns the keys that match a certain pattern.
*
* @param string $pattern pattern, using '*' as a wildcard.
* @return array of STRING: The keys that match a certain pattern.
* @link http://redis.io/commands/keys
* @example
* <pre>
* $allKeys = $redis->keys('*'); // all keys will match this.
* $keyWithUserPrefix = $redis->keys('user*');
* </pre>
*/
public function keys( $pattern ) {}
/**
* @see keys()
* @param string $pattern
* @link http://redis.io/commands/keys
*/
public function getKeys( $pattern ) {}
/**
* Returns the current database's size.
*
* @return int: DB size, in number of keys.
* @link http://redis.io/commands/dbsize
* @example
* <pre>
* $count = $redis->dbSize();
* echo "Redis has $count keys\n";
* </pre>
*/
public function dbSize( ) {}
/**
* Authenticate the connection using a password.
* Warning: The password is sent in plain-text over the network.
*
* @param string $password
* @return bool: TRUE if the connection is authenticated, FALSE otherwise.
* @link http://redis.io/commands/auth
* @example $redis->auth('foobared');
*/
public function auth( $password ) {}
/**
* Starts the background rewrite of AOF (Append-Only File)
*
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/bgrewriteaof
* @example $redis->bgrewriteaof();
*/
public function bgrewriteaof( ) {}
/**
* Changes the slave status
* Either host and port, or no parameter to stop being a slave.
*
* @param string $host [optional]
* @param int $port [optional]
* @return bool: TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/slaveof
* @example
* <pre>
* $redis->slaveof('10.0.1.7', 6379);
* // ...
* $redis->slaveof();
* </pre>
*/
public function slaveof( $host = '127.0.0.1', $port = 6379 ) {}
/**
* Describes the object pointed to by a key.
* The information to retrieve (string) and the key (string).
* Info can be one of the following:
* - "encoding"
* - "refcount"
* - "idletime"
*
* @param string $string
* @param string $key
* @return string for "encoding", int for "refcount" and "idletime", FALSE if the key doesn't exist.
* @link http://redis.io/commands/object
* @example
* <pre>
* $redis->object("encoding", "l"); // → ziplist
* $redis->object("refcount", "l"); // → 1
* $redis->object("idletime", "l"); // → 400 (in seconds, with a precision of 10 seconds).
* </pre>
*/
public function object( $string = '', $key = '' ) {}
/**
* Performs a synchronous save.
*
* @return bool: TRUE in case of success, FALSE in case of failure.
* If a save is already running, this command will fail and return FALSE.
* @link http://redis.io/commands/save
* @example $redis->save();
*/
public function save( ) {}
/**
* Performs a background save.
*
* @return bool: TRUE in case of success, FALSE in case of failure.
* If a save is already running, this command will fail and return FALSE.
* @link http://redis.io/commands/bgsave
* @example $redis->bgSave();
*/
public function bgsave( ) {}
/**
* Returns the timestamp of the last disk save.
*
* @return int: timestamp.
* @link http://redis.io/commands/lastsave
* @example $redis->lastSave();
*/
public function lastSave( ) {}
/**
* Returns the type of data pointed by a given key.
*
* @param string $key
* @return int
*
* Depending on the type of the data pointed by the key,
* this method will return the following value:
* - string: Redis::REDIS_STRING
* - set: Redis::REDIS_SET
* - list: Redis::REDIS_LIST
* - zset: Redis::REDIS_ZSET
* - hash: Redis::REDIS_HASH
* - other: Redis::REDIS_NOT_FOUND
* @link http://redis.io/commands/type
* @example $redis->type('key');
*/
public function type( $key ) {}
/**
* Append specified string to the string stored in specified key.
*
* @param string $key
* @param string $value
* @return int: Size of the value after the append
* @link http://redis.io/commands/append
* @example
* <pre>
* $redis->set('key', 'value1');
* $redis->append('key', 'value2'); // 12
* $redis->get('key'); // 'value1value2'
* </pre>
*/
public function append( $key, $value ) {}
/**
* Return a substring of a larger string
*
* @param string $key
* @param int $start
* @param int $end
* @return string: the substring
* @link http://redis.io/commands/getrange
* @example
* <pre>
* $redis->set('key', 'string value');
* $redis->getRange('key', 0, 5); // 'string'
* $redis->getRange('key', -5, -1); // 'value'
* </pre>
*/
public function getRange( $key, $start, $end ) {}
/**
* Return a substring of a larger string
*
* @deprecated
* @param string $key
* @param int $start
* @param int $end
*/
public function substr( $key, $start, $end ) {}
/**
* Changes a substring of a larger string.
*
* @param string $key
* @param int $offset
* @param string $value
* @return string: the length of the string after it was modified.
* @link http://redis.io/commands/setrange
* @example
* <pre>
* $redis->set('key', 'Hello world');
* $redis->setRange('key', 6, "redis"); // returns 11
* $redis->get('key'); // "Hello redis"
* </pre>
*/
public function setRange( $key, $offset, $value ) {}
/**
* Get the length of a string value.
*
* @param string $key
* @return int
* @link http://redis.io/commands/strlen
* @example
* <pre>
* $redis->set('key', 'value');
* $redis->strlen('key'); // 5
* </pre>
*/
public function strlen( $key ) {}
/**
* Return a single bit out of a larger string
*
* @param string $key
* @param int $offset
* @return int: the bit value (0 or 1)
* @link http://redis.io/commands/getbit
* @example
* <pre>
* $redis->set('key', "\x7f"); // this is 0111 1111
* $redis->getBit('key', 0); // 0
* $redis->getBit('key', 1); // 1
* </pre>
*/
public function getBit( $key, $offset ) {}
/**
* Changes a single bit of a string.
*
* @param string $key
* @param int $offset
* @param bool|int $value bool or int (1 or 0)
* @return int: 0 or 1, the value of the bit before it was set.
* @link http://redis.io/commands/setbit
* @example
* <pre>
* $redis->set('key', "*"); // ord("*") = 42 = 0x2f = "0010 1010"
* $redis->setBit('key', 5, 1); // returns 0
* $redis->setBit('key', 7, 1); // returns 0
* $redis->get('key'); // chr(0x2f) = "/" = b("0010 1111")
* </pre>
*/
public function setBit( $key, $offset, $value ) {}
/**
* Count bits in a string.
*
* @param string $key
* @return int The number of bits set to 1 in the value behind the input key.
* @link http://redis.io/commands/bitcount
* @example
* <pre>
* $redis->set('bit', '345'); // // 11 0011 0011 0100 0011 0101
* var_dump( $redis->bitCount('bit', 0, 0) ); // int(4)
* var_dump( $redis->bitCount('bit', 1, 1) ); // int(3)
* var_dump( $redis->bitCount('bit', 2, 2) ); // int(4)
* var_dump( $redis->bitCount('bit', 0, 2) ); // int(11)
* </pre>
*/
public function bitCount( $key ) {}
/**
* Bitwise operation on multiple keys.
*
* @param string $operation either "AND", "OR", "NOT", "XOR"
* @param string $retKey return key
* @param string $key1
* @param string $key2
* @return int The size of the string stored in the destination key.
* @link http://redis.io/commands/bitop
* @example
* <pre>
* $redis->set('bit1', '1'); // 11 0001
* $redis->set('bit2', '2'); // 11 0010
*
* $redis->bitOp('AND', 'bit', 'bit1', 'bit2'); // bit = 110000
* $redis->bitOp('OR', 'bit', 'bit1', 'bit2'); // bit = 110011
* $redis->bitOp('NOT', 'bit', 'bit1', 'bit2'); // bit = 110011
* $redis->bitOp('XOR', 'bit', 'bit1', 'bit2'); // bit = 11
* </pre>
*/
public function bitOp( $operation, $retKey, $key1, $key2, $key3 = null ) {}
/**
* Removes all entries from the current database.
*
* @return bool: Always TRUE.
* @link http://redis.io/commands/flushdb
* @example $redis->flushDB();
*/
public function flushDB( ) {}
/**
* Removes all entries from all databases.
*
* @return bool: Always TRUE.
* @link http://redis.io/commands/flushall
* @example $redis->flushAll();
*/
public function flushAll( ) {}
/**
* Sort
*
* @param string $key
* @param array $option array(key => value, ...) - optional, with the following keys and values:
* - 'by' => 'some_pattern_*',
* - 'limit' => array(0, 1),
* - 'get' => 'some_other_pattern_*' or an array of patterns,
* - 'sort' => 'asc' or 'desc',
* - 'alpha' => TRUE,
* - 'store' => 'external-key'
* @return array
* An array of values, or a number corresponding to the number of elements stored if that was used.
* @link http://redis.io/commands/sort
* @example
* <pre>
* $redis->delete('s');
* $redis->sadd('s', 5);
* $redis->sadd('s', 4);
* $redis->sadd('s', 2);
* $redis->sadd('s', 1);
* $redis->sadd('s', 3);
*
* var_dump($redis->sort('s')); // 1,2,3,4,5
* var_dump($redis->sort('s', array('sort' => 'desc'))); // 5,4,3,2,1
* var_dump($redis->sort('s', array('sort' => 'desc', 'store' => 'out'))); // (int)5
* </pre>
*/
public function sort( $key, $option = null ) {}
/**
* Returns an associative array of strings and integers
* @param string $option Optional. The option to provide redis.
* SERVER | CLIENTS | MEMORY | PERSISTENCE | STATS | REPLICATION | CPU | CLASTER | KEYSPACE | COMANDSTATS
*
* Returns an associative array of strings and integers, with the following keys:
* - redis_version
* - redis_git_sha1
* - redis_git_dirty
* - arch_bits
* - multiplexing_api
* - process_id
* - uptime_in_seconds
* - uptime_in_days
* - lru_clock
* - used_cpu_sys
* - used_cpu_user
* - used_cpu_sys_children
* - used_cpu_user_children
* - connected_clients
* - connected_slaves
* - client_longest_output_list
* - client_biggest_input_buf
* - blocked_clients
* - used_memory
* - used_memory_human
* - used_memory_peak
* - used_memory_peak_human
* - mem_fragmentation_ratio
* - mem_allocator
* - loading
* - aof_enabled
* - changes_since_last_save
* - bgsave_in_progress
* - last_save_time
* - total_connections_received
* - total_commands_processed
* - expired_keys
* - evicted_keys
* - keyspace_hits
* - keyspace_misses
* - hash_max_zipmap_entries
* - hash_max_zipmap_value
* - pubsub_channels
* - pubsub_patterns
* - latest_fork_usec
* - vm_enabled
* - role
* @link http://redis.io/commands/info
* @return string
* @example
* <pre>
* $redis->info();
*
* or
*
* $redis->info("COMMANDSTATS"); //Information on the commands that have been run (>=2.6 only)
* $redis->info("CPU"); // just CPU information from Redis INFO
* </pre>
*/
public function info( $option = null ) {}
/**
* Resets the statistics reported by Redis using the INFO command (`info()` function).
* These are the counters that are reset:
* - Keyspace hits
* - Keyspace misses
* - Number of commands processed
* - Number of connections received
* - Number of expired keys
*
* @return bool: `TRUE` in case of success, `FALSE` in case of failure.
* @example $redis->resetStat();
* @link http://redis.io/commands/config-resetstat
*/
public function resetStat( ) {}
/**
* Returns the time to live left for a given key, in seconds. If the key doesn't exist, FALSE is returned.
*
* @param string $key
* @return int, the time left to live in seconds.
* @link http://redis.io/commands/ttl
* @example $redis->ttl('key');
*/
public function ttl( $key ) {}
/**
* Returns a time to live left for a given key, in milliseconds.
*
* If the key doesn't exist, FALSE is returned.
*
* @param string $key
* @return int the time left to live in milliseconds.
* @link http://redis.io/commands/pttl
* @example $redis->pttl('key');
*/
public function pttl( $key ) {}
/**
* Remove the expiration timer from a key.
*
* @param string $key
* @return bool: TRUE if a timeout was removed, FALSE if the key didn’t exist or didn’t have an expiration timer.
* @link http://redis.io/commands/persist
* @example $redis->persist('key');
*/
public function persist( $key ) {}
/**
* Sets multiple key-value pairs in one atomic command.
* MSETNX only returns TRUE if all the keys were set (see SETNX).
*
* @param array(key => value) $array Pairs: array(key => value, ...)
* @return bool TRUE in case of success, FALSE in case of failure.
* @link http://redis.io/commands/mset
* @example
* <pre>
* $redis->mset(array('key0' => 'value0', 'key1' => 'value1'));
* var_dump($redis->get('key0'));
* var_dump($redis->get('key1'));
* // Output:
* // string(6) "value0"
* // string(6) "value1"
* </pre>
*/
public function mset( array $array ) {}
/**
* Returns the values of all specified keys.
*
* For every key that does not hold a string value or does not exist,
* the special value false is returned. Because of this, the operation never fails.
*
* @param array $array
* @return array
* @link http://redis.io/commands/mget
* @example
* <pre>
* $redis->delete('x', 'y', 'z', 'h'); // remove x y z
* $redis->mset(array('x' => 'a', 'y' => 'b', 'z' => 'c'));
* $redis->hset('h', 'field', 'value');
* var_dump($redis->mget(array('x', 'y', 'z', 'h')));
* // Output:
* // array(3) {
* // [0]=>
* // string(1) "a"
* // [1]=>
* // string(1) "b"
* // [2]=>
* // string(1) "c"
* // [3]=>
* // bool(false)
* // }
* </pre>
*/
public function mget( array $array ) {}
/**
* @see mset()
* @param array $array
* @return int 1 (if the keys were set) or 0 (no key was set)
* @link http://redis.io/commands/msetnx
*/
public function msetnx( array $array ) {}
/**
* Pops a value from the tail of a list, and pushes it to the front of another list.
* Also return this value.
*
* @since redis >= 1.1
* @param string $srcKey
* @param string $dstKey
* @return string The element that was moved in case of success, FALSE in case of failure.
* @link http://redis.io/commands/rpoplpush
* @example
* <pre>
* $redis->delete('x', 'y');
*
* $redis->lPush('x', 'abc');
* $redis->lPush('x', 'def');
* $redis->lPush('y', '123');
* $redis->lPush('y', '456');
*
* // move the last of x to the front of y.
* var_dump($redis->rpoplpush('x', 'y'));
* var_dump($redis->lRange('x', 0, -1));
* var_dump($redis->lRange('y', 0, -1));
*
* //Output:
* //
* //string(3) "abc"
* //array(1) {
* // [0]=>
* // string(3) "def"
* //}
* //array(3) {
* // [0]=>
* // string(3) "abc"
* // [1]=>
* // string(3) "456"
* // [2]=>
* // string(3) "123"
* //}
* </pre>
*/
public function rpoplpush( $srcKey, $dstKey ) {}
/**
* A blocking version of rpoplpush, with an integral timeout in the third parameter.
*
* @param string $srcKey
* @param string $dstKey
* @param int $timeout
* @return string The element that was moved in case of success, FALSE in case of timeout.
* @link http://redis.io/commands/brpoplpush
*/
public function brpoplpush( $srcKey, $dstKey, $timeout ) {}
/**
* Adds the specified member with a given score to the sorted set stored at key.
*
* @param string $key Required key
* @param float $score1 Required score
* @param string $value1 Required value
* @param float $score2 Optional score
* @param string $value2 Optional value
* @param float $scoreN Optional score
* @param string $valueN Optional value
* @return int Number of values added
* @link http://redis.io/commands/zadd
* @example
* <pre>
* <pre>
* $redis->zAdd('z', 1, 'v2', 2, 'v2', 3, 'v3', 4, 'v4' ); // int(2)
* $redis->zRem('z', 'v2', 'v3'); // int(2)
* var_dump( $redis->zRange('z', 0, -1) );
* //// Output:
* // array(2) {
* // [0]=> string(2) "v1"
* // [1]=> string(2) "v4"
* // }
* </pre>
* </pre>
*/
public function zAdd( $key, $score1, $value1, $score2 = null, $value2 = null, $scoreN = null, $valueN = null ) {}
/**
* Returns a range of elements from the ordered set stored at the specified key,
* with values in the range [start, end]. start and stop are interpreted as zero-based indices:
* 0 the first element,
* 1 the second ...
* -1 the last element,
* -2 the penultimate ...
*
* @param string $key
* @param int $start
* @param int $end
* @param bool $withscores
* @return array Array containing the values in specified range.
* @link http://redis.io/commands/zrange
* @example
* <pre>
* $redis->zAdd('key1', 0, 'val0');
* $redis->zAdd('key1', 2, 'val2');
* $redis->zAdd('key1', 10, 'val10');
* $redis->zRange('key1', 0, -1); // array('val0', 'val2', 'val10')
* // with scores
* $redis->zRange('key1', 0, -1, true); // array('val0' => 0, 'val2' => 2, 'val10' => 10)
* </pre>
*/
public function zRange( $key, $start, $end, $withscores = null ) {}
/**
* Deletes a specified member from the ordered set.
*
* @param string $key
* @param string $member1
* @param string $member2
* @param string $memberN
* @return int Number of deleted values
* @link http://redis.io/commands/zrem
* @example
* <pre>
* $redis->zAdd('z', 1, 'v2', 2, 'v2', 3, 'v3', 4, 'v4' ); // int(2)
* $redis->zRem('z', 'v2', 'v3'); // int(2)
* var_dump( $redis->zRange('z', 0, -1) );
* //// Output:
* // array(2) {
* // [0]=> string(2) "v1"
* // [1]=> string(2) "v4"
* // }
* </pre>
*/
public function zRem( $key, $member1, $member2 = null, $memberN = null ) {}
/**
* @see zRem()
* @param string $key
* @param string $member1
* @param string $member2
* @param string $memberN
* @return int Number of deleted values
* @link http://redis.io/commands/zrem
*/
public function zDelete( $key, $member1, $member2 = null, $memberN = null ) {}
/**
* Returns the elements of the sorted set stored at the specified key in the range [start, end]
* in reverse order. start and stop are interpretated as zero-based indices:
* 0 the first element,
* 1 the second ...
* -1 the last element,
* -2 the penultimate ...
*
* @param string $key
* @param int $start
* @param int $end
* @param bool $withscore
* @return array Array containing the values in specified range.
* @link http://redis.io/commands/zrevrange
* @example
* <pre>
* $redis->zAdd('key', 0, 'val0');
* $redis->zAdd('key', 2, 'val2');
* $redis->zAdd('key', 10, 'val10');
* $redis->zRevRange('key', 0, -1); // array('val10', 'val2', 'val0')
*
* // with scores
* $redis->zRevRange('key', 0, -1, true); // array('val10' => 10, 'val2' => 2, 'val0' => 0)
* </pre>
*/
public function zRevRange( $key, $start, $end, $withscore = null ) {}
/**
* Returns the elements of the sorted set stored at the specified key which have scores in the
* range [start,end]. Adding a parenthesis before start or end excludes it from the range.
* +inf and -inf are also valid limits.
*
* zRevRangeByScore returns the same items in reverse order, when the start and end parameters are swapped.
*
* @param string $key
* @param int $start
* @param int $end
* @param array $options Two options are available:
* - withscores => TRUE,
* - and limit => array($offset, $count)
* @return array Array containing the values in specified range.
* @link http://redis.io/commands/zrangebyscore
* @example
* <pre>
* $redis->zAdd('key', 0, 'val0');
* $redis->zAdd('key', 2, 'val2');
* $redis->zAdd('key', 10, 'val10');
* $redis->zRangeByScore('key', 0, 3); // array('val0', 'val2')
* $redis->zRangeByScore('key', 0, 3, array('withscores' => TRUE); // array('val0' => 0, 'val2' => 2)
* $redis->zRangeByScore('key', 0, 3, array('limit' => array(1, 1)); // array('val2' => 2)
* $redis->zRangeByScore('key', 0, 3, array('limit' => array(1, 1)); // array('val2')
* $redis->zRangeByScore('key', 0, 3, array('withscores' => TRUE, 'limit' => array(1, 1)); // array('val2' => 2)
* </pre>
*/
public function zRangeByScore( $key, $start, $end, array $options = array() ) {}
/**
* @see zRangeByScore()
* @param string $key
* @param int $start
* @param int $end
* @param array $options
*
* @return array
*/
public function zRevRangeByScore( $key, $start, $end, array $options = array() ) {}
/**
* Returns the number of elements of the sorted set stored at the specified key which have
* scores in the range [start,end]. Adding a parenthesis before start or end excludes it
* from the range. +inf and -inf are also valid limits.
*
* @param string $key
* @param string $start
* @param string $end
* @return int the size of a corresponding zRangeByScore.
* @link http://redis.io/commands/zcount
* @example
* <pre>
* $redis->zAdd('key', 0, 'val0');
* $redis->zAdd('key', 2, 'val2');
* $redis->zAdd('key', 10, 'val10');
* $redis->zCount('key', 0, 3); // 2, corresponding to array('val0', 'val2')
* </pre>
*/
public function zCount( $key, $start, $end ) {}
/**
* Deletes the elements of the sorted set stored at the specified key which have scores in the range [start,end].
*
* @param string $key
* @param float|string $start double or "+inf" or "-inf" string
* @param float|string $end double or "+inf" or "-inf" string
* @return int The number of values deleted from the sorted set
* @link http://redis.io/commands/zremrangebyscore
* @example
* <pre>
* $redis->zAdd('key', 0, 'val0');
* $redis->zAdd('key', 2, 'val2');
* $redis->zAdd('key', 10, 'val10');
* $redis->zRemRangeByScore('key', 0, 3); // 2
* </pre>
*/
public function zRemRangeByScore( $key, $start, $end ) {}
/**
* @see zRemRangeByScore()
* @param string $key
* @param float $start
* @param float $end
*/
public function zDeleteRangeByScore( $key, $start, $end ) {}
/**
* Deletes the elements of the sorted set stored at the specified key which have rank in the range [start,end].
*
* @param string $key
* @param int $start
* @param int $end
* @return int The number of values deleted from the sorted set
* @link http://redis.io/commands/zremrangebyrank
* @example
* <pre>
* $redis->zAdd('key', 1, 'one');
* $redis->zAdd('key', 2, 'two');
* $redis->zAdd('key', 3, 'three');
* $redis->zRemRangeByRank('key', 0, 1); // 2
* $redis->zRange('key', 0, -1, array('withscores' => TRUE)); // array('three' => 3)
* </pre>
*/
public function zRemRangeByRank( $key, $start, $end ) {}
/**
* @see zRemRangeByRank()
* @param string $key
* @param int $start
* @param int $end
* @link http://redis.io/commands/zremrangebyscore
*/
public function zDeleteRangeByRank( $key, $start, $end ) {}
/**
* Returns the cardinality of an ordered set.
*
* @param string $key
* @return int the set's cardinality
* @link http://redis.io/commands/zsize
* @example
* <pre>
* $redis->zAdd('key', 0, 'val0');
* $redis->zAdd('key', 2, 'val2');
* $redis->zAdd('key', 10, 'val10');
* $redis->zCard('key'); // 3
* </pre>
*/
public function zCard( $key ) {}
/**
* @see zCard()
* @param string $key
*/
public function zSize( $key ) {}
/**
* Returns the score of a given member in the specified sorted set.
*
* @param string $key
* @param string $member
* @return float
* @link http://redis.io/commands/zscore
* @example
* <pre>
* $redis->zAdd('key', 2.5, 'val2');
* $redis->zScore('key', 'val2'); // 2.5
* </pre>
*/
public function zScore( $key, $member ) {}
/**
* Returns the rank of a given member in the specified sorted set, starting at 0 for the item
* with the smallest score. zRevRank starts at 0 for the item with the largest score.
*
* @param string $key
* @param string $member
* @return int the item's score.
* @link http://redis.io/commands/zrank
* @example
* <pre>
* $redis->delete('z');
* $redis->zAdd('key', 1, 'one');
* $redis->zAdd('key', 2, 'two');
* $redis->zRank('key', 'one'); // 0
* $redis->zRank('key', 'two'); // 1
* $redis->zRevRank('key', 'one'); // 1
* $redis->zRevRank('key', 'two'); // 0
* </pre>
*/
public function zRank( $key, $member ) {}
/**
* @see zRank()
* @param string $key
* @param string $member
* @return int the item's score
* @link http://redis.io/commands/zrevrank
*/
public function zRevRank( $key, $member ) {}
/**
* Increments the score of a member from a sorted set by a given amount.
*
* @param string $key
* @param float $value (double) value that will be added to the member's score
* @param string $member
* @return float the new value
* @link http://redis.io/commands/zincrby
* @example
* <pre>
* $redis->delete('key');
* $redis->zIncrBy('key', 2.5, 'member1'); // key or member1 didn't exist, so member1's score is to 0
* // before the increment and now has the value 2.5
* $redis->zIncrBy('key', 1, 'member1'); // 3.5
* </pre>
*/
public function zIncrBy( $key, $value, $member ) {}
/**
* Creates an union of sorted sets given in second argument.
* The result of the union will be stored in the sorted set defined by the first argument.
* The third optionnel argument defines weights to apply to the sorted sets in input.
* In this case, the weights will be multiplied by the score of each element in the sorted set
* before applying the aggregation. The forth argument defines the AGGREGATE option which
* specify how the results of the union are aggregated.
*
* @param string $Output
* @param array $ZSetKeys
* @param array $Weights
* @param string $aggregateFunction Either "SUM", "MIN", or "MAX": defines the behaviour to use on
* duplicate entries during the zUnion.
* @return int The number of values in the new sorted set.
* @link http://redis.io/commands/zunionstore
* @example
* <pre>
* $redis->delete('k1');
* $redis->delete('k2');
* $redis->delete('k3');
* $redis->delete('ko1');
* $redis->delete('ko2');
* $redis->delete('ko3');
*
* $redis->zAdd('k1', 0, 'val0');
* $redis->zAdd('k1', 1, 'val1');
*
* $redis->zAdd('k2', 2, 'val2');
* $redis->zAdd('k2', 3, 'val3');
*
* $redis->zUnion('ko1', array('k1', 'k2')); // 4, 'ko1' => array('val0', 'val1', 'val2', 'val3')
*
* // Weighted zUnion
* $redis->zUnion('ko2', array('k1', 'k2'), array(1, 1)); // 4, 'ko2' => array('val0', 'val1', 'val2', 'val3')
* $redis->zUnion('ko3', array('k1', 'k2'), array(5, 1)); // 4, 'ko3' => array('val0', 'val2', 'val3', 'val1')
* </pre>
*/
public function zUnion($Output, $ZSetKeys, array $Weights = null, $aggregateFunction = 'SUM') {}
/**
* Creates an intersection of sorted sets given in second argument.
* The result of the union will be stored in the sorted set defined by the first argument.
* The third optional argument defines weights to apply to the sorted sets in input.
* In this case, the weights will be multiplied by the score of each element in the sorted set
* before applying the aggregation. The forth argument defines the AGGREGATE option which
* specify how the results of the union are aggregated.
*
* @param string $Output
* @param array $ZSetKeys
* @param array $Weights
* @param string $aggregateFunction Either "SUM", "MIN", or "MAX":
* defines the behaviour to use on duplicate entries during the zInter.
* @return int The number of values in the new sorted set.
* @link http://redis.io/commands/zinterstore
* @example
* <pre>
* $redis->delete('k1');
* $redis->delete('k2');
* $redis->delete('k3');
*
* $redis->delete('ko1');
* $redis->delete('ko2');
* $redis->delete('ko3');
* $redis->delete('ko4');
*
* $redis->zAdd('k1', 0, 'val0');
* $redis->zAdd('k1', 1, 'val1');
* $redis->zAdd('k1', 3, 'val3');
*
* $redis->zAdd('k2', 2, 'val1');
* $redis->zAdd('k2', 3, 'val3');
*
* $redis->zInter('ko1', array('k1', 'k2')); // 2, 'ko1' => array('val1', 'val3')
* $redis->zInter('ko2', array('k1', 'k2'), array(1, 1)); // 2, 'ko2' => array('val1', 'val3')
*
* // Weighted zInter
* $redis->zInter('ko3', array('k1', 'k2'), array(1, 5), 'min'); // 2, 'ko3' => array('val1', 'val3')
* $redis->zInter('ko4', array('k1', 'k2'), array(1, 5), 'max'); // 2, 'ko4' => array('val3', 'val1')
* </pre>
*/
public function zInter($Output, $ZSetKeys, array $Weights = null, $aggregateFunction = 'SUM') {}
/**
* Adds a value to the hash stored at key. If this value is already in the hash, FALSE is returned.
*
* @param string $key
* @param string $hashKey
* @param string $value
* @return int
* 1 if value didn't exist and was added successfully,
* 0 if the value was already present and was replaced, FALSE if there was an error.
* @link http://redis.io/commands/hset
* @example
* <pre>
* $redis->delete('h')
* $redis->hSet('h', 'key1', 'hello'); // 1, 'key1' => 'hello' in the hash at "h"
* $redis->hGet('h', 'key1'); // returns "hello"
*
* $redis->hSet('h', 'key1', 'plop'); // 0, value was replaced.
* $redis->hGet('h', 'key1'); // returns "plop"
* </pre>
*/
public function hSet( $key, $hashKey, $value ) {}
/**
* Adds a value to the hash stored at key only if this field isn't already in the hash.
*
* @param string $key
* @param string $hashKey
* @param string $value
* @return bool TRUE if the field was set, FALSE if it was already present.
* @link http://redis.io/commands/hsetnx
* @example
* <pre>
* $redis->delete('h')
* $redis->hSetNx('h', 'key1', 'hello'); // TRUE, 'key1' => 'hello' in the hash at "h"
* $redis->hSetNx('h', 'key1', 'world'); // FALSE, 'key1' => 'hello' in the hash at "h". No change since the field
* wasn't replaced.
* </pre>
*/
public function hSetNx( $key, $hashKey, $value ) {}
/**
* Gets a value from the hash stored at key.
* If the hash table doesn't exist, or the key doesn't exist, FALSE is returned.
*
* @param string $key
* @param string $hashKey
* @return string The value, if the command executed successfully BOOL FALSE in case of failure
* @link http://redis.io/commands/hget
*/
public function hGet($key, $hashKey) {}
/**
* Returns the length of a hash, in number of items
*
* @param string $key
* @return int the number of items in a hash, FALSE if the key doesn't exist or isn't a hash.
* @link http://redis.io/commands/hlen
* @example
* <pre>
* $redis->delete('h')
* $redis->hSet('h', 'key1', 'hello');
* $redis->hSet('h', 'key2', 'plop');
* $redis->hLen('h'); // returns 2
* </pre>
*/
public function hLen( $key ) {}
/**
* Removes a values from the hash stored at key.
* If the hash table doesn't exist, or the key doesn't exist, FALSE is returned.
*
* @param string $key
* @param string $hashKey1
* @param string $hashKey2
* @param string $hashKeyN
* @return int Number of deleted fields
* @link http://redis.io/commands/hdel
* @example
* <pre>
* $redis->hMSet('h',
* array(
* 'f1' => 'v1',
* 'f2' => 'v2',
* 'f3' => 'v3',
* 'f4' => 'v4',
* ));
*
* var_dump( $redis->hDel('h', 'f1') ); // int(1)
* var_dump( $redis->hDel('h', 'f2', 'f3') ); // int(2)
* s
* var_dump( $redis->hGetAll('h') );
* //// Output:
* // array(1) {
* // ["f4"]=> string(2) "v4"
* // }
* </pre>
*/
public function hDel( $key, $hashKey1, $hashKey2 = null, $hashKeyN = null ) {}
/**
* Returns the keys in a hash, as an array of strings.
*
* @param string $key
* @return array An array of elements, the keys of the hash. This works like PHP's array_keys().
* @link http://redis.io/commands/hkeys
* @example
* <pre>
* $redis->delete('h');
* $redis->hSet('h', 'a', 'x');
* $redis->hSet('h', 'b', 'y');
* $redis->hSet('h', 'c', 'z');
* $redis->hSet('h', 'd', 't');
* var_dump($redis->hKeys('h'));
*
* // Output:
* // array(4) {
* // [0]=>
* // string(1) "a"
* // [1]=>
* // string(1) "b"
* // [2]=>
* // string(1) "c"
* // [3]=>
* // string(1) "d"
* // }
* // The order is random and corresponds to redis' own internal representation of the set structure.
* </pre>
*/
public function hKeys( $key ) {}
/**
* Returns the values in a hash, as an array of strings.
*
* @param string $key
* @return array An array of elements, the values of the hash. This works like PHP's array_values().
* @link http://redis.io/commands/hvals
* @example
* <pre>
* $redis->delete('h');
* $redis->hSet('h', 'a', 'x');
* $redis->hSet('h', 'b', 'y');
* $redis->hSet('h', 'c', 'z');
* $redis->hSet('h', 'd', 't');
* var_dump($redis->hVals('h'));
*
* // Output
* // array(4) {
* // [0]=>
* // string(1) "x"
* // [1]=>
* // string(1) "y"
* // [2]=>
* // string(1) "z"
* // [3]=>
* // string(1) "t"
* // }
* // The order is random and corresponds to redis' own internal representation of the set structure.
* </pre>
*/
public function hVals( $key ) {}
/**
* Returns the whole hash, as an array of strings indexed by strings.
*
* @param string $key
* @return array An array of elements, the contents of the hash.
* @link http://redis.io/commands/hgetall
* @example
* <pre>
* $redis->delete('h');
* $redis->hSet('h', 'a', 'x');
* $redis->hSet('h', 'b', 'y');
* $redis->hSet('h', 'c', 'z');
* $redis->hSet('h', 'd', 't');
* var_dump($redis->hGetAll('h'));
*
* // Output:
* // array(4) {
* // ["a"]=>
* // string(1) "x"
* // ["b"]=>
* // string(1) "y"
* // ["c"]=>
* // string(1) "z"
* // ["d"]=>
* // string(1) "t"
* // }
* // The order is random and corresponds to redis' own internal representation of the set structure.
* </pre>
*/
public function hGetAll( $key ) {}
/**
* Verify if the specified member exists in a key.
*
* @param string $key
* @param string $hashKey
* @return bool: If the member exists in the hash table, return TRUE, otherwise return FALSE.
* @link http://redis.io/commands/hexists
* @example
* <pre>
* $redis->hSet('h', 'a', 'x');
* $redis->hExists('h', 'a'); // TRUE
* $redis->hExists('h', 'NonExistingKey'); // FALSE
* </pre>
*/
public function hExists( $key, $hashKey ) {}
/**
* Increments the value of a member from a hash by a given amount.
*
* @param string $key
* @param string $hashKey
* @param int $value (integer) value that will be added to the member's value
* @return int the new value
* @link http://redis.io/commands/hincrby
* @example
* <pre>
* $redis->delete('h');
* $redis->hIncrBy('h', 'x', 2); // returns 2: h[x] = 2 now.
* $redis->hIncrBy('h', 'x', 1); // h[x] ← 2 + 1. Returns 3
* </pre>
*/
public function hIncrBy( $key, $hashKey, $value ) {}
/**
* Increment the float value of a hash field by the given amount
* @param string $key
* @param string $field
* @param float $increment
* @return float
* @link http://redis.io/commands/hincrbyfloat
* @example
* <pre>
* $redis = new Redis();
* $redis->connect('127.0.0.1');
* $redis->hset('h', 'float', 3);
* $redis->hset('h', 'int', 3);
* var_dump( $redis->hIncrByFloat('h', 'float', 1.5) ); // float(4.5)
*
* var_dump( $redis->hGetAll('h') );
*
* // Output
* array(2) {
* ["float"]=>
* string(3) "4.5"
* ["int"]=>
* string(1) "3"
* }
* </pre>
*/
public function hIncrByFloat( $key, $field, $increment ) {}
/**
* Fills in a whole hash. Non-string values are converted to string, using the standard (string) cast.
* NULL values are stored as empty strings
*
* @param string $key
* @param array $hashKeys key → value array
* @return bool
* @link http://redis.io/commands/hmset
* @example
* <pre>
* $redis->delete('user:1');
* $redis->hMset('user:1', array('name' => 'Joe', 'salary' => 2000));
* $redis->hIncrBy('user:1', 'salary', 100); // Joe earns 100 more now.
* </pre>
*/
public function hMset( $key, $hashKeys ) {}
/**
* Retirieve the values associated to the specified fields in the hash.
*
* @param string $key
* @param array $hashKeys
* @return array Array An array of elements, the values of the specified fields in the hash,
* with the hash keys as array keys.
* @link http://redis.io/commands/hmget
* @example
* <pre>
* $redis->delete('h');
* $redis->hSet('h', 'field1', 'value1');
* $redis->hSet('h', 'field2', 'value2');
* $redis->hmGet('h', array('field1', 'field2')); // returns array('field1' => 'value1', 'field2' => 'value2')
* </pre>
*/
public function hMGet( $key, $hashKeys ) {}
/**
* Get or Set the redis config keys.
*
* @param string $operation either `GET` or `SET`
* @param string $key for `SET`, glob-pattern for `GET`. See http://redis.io/commands/config-get for examples.
* @param string $value optional string (only for `SET`)
* @return array Associative array for `GET`, key -> value
* @link http://redis.io/commands/config-get
* @link http://redis.io/commands/config-set
* @example
* <pre>
* $redis->config("GET", "*max-*-entries*");
* $redis->config("SET", "dir", "/var/run/redis/dumps/");
* </pre>
*/
public function config( $operation, $key, $value ) {}
/**
* @see eval()
* @param string $script
* @param array $args
* @param int $numKeys
*/
public function evaluate( $script, $args = array(), $numKeys = 0 ) {}
/**
* Evaluate a LUA script serverside, from the SHA1 hash of the script instead of the script itself.
* In order to run this command Redis will have to have already loaded the script, either by running it or via
* the SCRIPT LOAD command.
* @param string $scriptSha
* @param array $args
* @param int $numKeys
* @return mixed. @see eval()
* @see eval()
* @link http://redis.io/commands/evalsha
* @example
* <pre>
* $script = 'return 1';
* $sha = $redis->script('load', $script);
* $redis->evalSha($sha); // Returns 1
* </pre>
*/
public function evalSha( $scriptSha, $args = array(), $numKeys = 0 ) {}
/**
* @see evalSha()
* @param string $scriptSha
* @param array $args
* @param int $numKeys
*/
public function evaluateSha( $scriptSha, $args = array(), $numKeys = 0 ) {}
/**
* Execute the Redis SCRIPT command to perform various operations on the scripting subsystem.
* @param string $command load | flush | kill | exists
* @param string $script
* @return mixed
* @link http://redis.io/commands/script-load
* @link http://redis.io/commands/script-kill
* @link http://redis.io/commands/script-flush
* @link http://redis.io/commands/script-exists
* @example
* <pre>
* $redis->script('load', $script);
* $redis->script('flush');
* $redis->script('kill');
* $redis->script('exists', $script1, [$script2, $script3, ...]);
* </pre>
*
* SCRIPT LOAD will return the SHA1 hash of the passed script on success, and FALSE on failure.
* SCRIPT FLUSH should always return TRUE
* SCRIPT KILL will return true if a script was able to be killed and false if not
* SCRIPT EXISTS will return an array with TRUE or FALSE for each passed script
*/
public function script( $command, $script ) {}
/**
* The last error message (if any)
* @return string A string with the last returned script based error message, or NULL if there is no error
* @example
* <pre>
* $redis->eval('this-is-not-lua');
* $err = $redis->getLastError();
* // "ERR Error compiling script (new function): user_script:1: '=' expected near '-'"
* </pre>
*/
public function getLastError() {}
/**
* Clear the last error message
*
* @return bool true
* @example
* <pre>
* $redis->set('x', 'a');
* $redis->incr('x');
* $err = $redis->getLastError();
* // "ERR value is not an integer or out of range"
* $redis->clearLastError();
* $err = $redis->getLastError();
* // NULL
* </pre>
*/
public function clearLastError() {}
/**
* A utility method to prefix the value with the prefix setting for phpredis.
* @param $value The value you wish to prefix
* @return string If a prefix is set up, the value now prefixed. If there is no prefix, the value will be returned unchanged.
* @example
* <pre>
* $redis->setOption(Redis::OPT_PREFIX, 'my-prefix:');
* $redis->_prefix('my-value'); // Will return 'my-prefix:my-value'
* </pre>
*/
public function _prefix( $value ) {}
/**
* A utility method to unserialize data with whatever serializer is set up. If there is no serializer set, the
* value will be returned unchanged. If there is a serializer set up, and the data passed in is malformed, an
* exception will be thrown. This can be useful if phpredis is serializing values, and you return something from
* redis in a LUA script that is serialized.
* @param string $value The value to be unserialized
* @return mixed
* @example
* <pre>
* $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_PHP);
* $redis->_unserialize('a:3:{i:0;i:1;i:1;i:2;i:2;i:3;}'); // Will return Array(1,2,3)
* </pre>
*/
public function _unserialize( $value ) {}
/**
* Dump a key out of a redis database, the value of which can later be passed into redis using the RESTORE command.
* The data that comes out of DUMP is a binary representation of the key as Redis stores it.
* @param string $key
* @return string The Redis encoded value of the key, or FALSE if the key doesn't exist
* @link http://redis.io/commands/dump
* @example
* <pre>
* $redis->set('foo', 'bar');
* $val = $redis->dump('foo'); // $val will be the Redis encoded key value
* </pre>
*/
public function dump( $key ) {}
/**
* Restore a key from the result of a DUMP operation.
*
* @param string $key The key name
* @param int $ttl How long the key should live (if zero, no expire will be set on the key)
* @param string $value (binary). The Redis encoded key value (from DUMP)
* @return bool
* @link http://redis.io/commands/restore
* @example
* <pre>
* $redis->set('foo', 'bar');
* $val = $redis->dump('foo');
* $redis->restore('bar', 0, $val); // The key 'bar', will now be equal to the key 'foo'
* </pre>
*/
public function restore( $key, $ttl, $value ) {}
/**
* Migrates a key to a different Redis instance.
*
* @param string $host The destination host
* @param int $port The TCP port to connect to.
* @param string $key The key to migrate.
* @param int $db The target DB.
* @param int $timeout The maximum amount of time given to this transfer.
* @return bool
* @link http://redis.io/commands/migrate
* @example
* <pre>
* $redis->migrate('backup', 6379, 'foo', 0, 3600);
* </pre>
*/
public function migrate( $host, $port, $key, $db, $timeout ) {}
/**
* Return the current Redis server time.
* @return array If successfull, the time will come back as an associative array with element zero being the
* unix timestamp, and element one being microseconds.
* @link http://redis.io/commands/time
* <pre>
* var_dump( $redis->time() );
* // array(2) {
* // [0] => string(10) "1342364352"
* // [1] => string(6) "253002"
* // }
* </pre>
*/
public function time() {}
}
class RedisException extends Exception {}
class RedisArray {
/**
* Constructor
*
* @param string $name Name of the redis array to create (required if using redis.ini to define array)
* @param array $hosts Array of hosts to construct the array with
* @param array $opts Array of options
* @link https://github.com/nicolasff/phpredis/blob/master/arrays.markdown
*/
function __construct($name = '', array $hosts = NULL, array $opts = NULL) {}
/**
* @return array list of hosts for the selected array
*/
public function _hosts() {}
/**
* @return string the name of the function used to extract key parts during consistent hashing
*/
public function _function() {}
/**
* @param string key The key for which you want to lookup the host
* @return string the host to be used for a certain key
*/
public function _target($key) {}
/**
* Use this function when a new node is added and keys need to be rehashed.
*/
public function _rehash() {}
}
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