PHP缓存集成库phpFastCache用法

本文实例讲述了php缓存集成库phpfastcache用法。分享给大家供大家参考。具体分析如下：

phpfastcache是一个开源的php缓存库，只提供一个简单的php文件，可方便集成到已有项目，支持多种缓存方法，包括：apc, memcache, memcached, wincache, files, pdo and mpdo。可通过简单的api来定义缓存的有效时间。

<?php
// in your config file
include("phpfastcache/phpfastcache.php");
phpfastcache::setup("storage","auto");

// phpfastcache support "apc", "memcache", "memcached", "wincache" ,"files", "sqlite" and "xcache"
// you don't need to change your code when you change your caching system. or simple keep it auto
$cache = phpfastcache();

// in your class, functions, php pages
// try to get from cache first. product_page = your identity keyword
$products = $cache->get("product_page");

if($products == null) {
    $products = your db queries || get_products_function;
    // set products in to cache in 600 seconds = 10 minutes
    $cache->set("product_page", $products,600);
}

// output your contents $products here

提高curl和api调用性能

<?php
include("phpfastcache/phpfastcache.php");

$cache = phpfastcache("memcached");

// try to get from cache first.
$results = $cache->get("identity_keyword")

if($results == null) {
    $results = curl->get("http://www.youtube.com/api/json/url/keyword/page");
    // write to cache save api calls next time
    $cache->set("identity_keyword", $results, 3600*24);
}

foreach($results as $video) {
    // output your contents here
}

全页缓存

<?php
// use files cache for whole page / widget

// keyword = webpage_url
$keyword_webpage = md5($_server['http_host'].$_server['request_uri'].$_server['query_string']);
$html = __c("files")->get($keyword_webpage);

if($html == null) {
    ob_start();
    /*
        all of your code go here
        render your page, db query, whatever
    */

    // get html webpage
    $html = ob_get_contents();
    // save to cache 30 minutes
    __c("files")->set($keyword_webpage,$html, 1800);
}

echo $html;

挂件缓存

<?php
// use files cache for whole page / widget
$cache = phpfastcache("files");

$html = $cache->widget_1;

if($html == null) {
    $html = render your page || widget || "hello world";
    // save to cache 30 minutes
    $cache->widget_1 = array($html, 1800);
}

echo or return your $html;

同时使用多种缓存

<?php
// in your config files
include("phpfastcache/phpfastcache.php");
// auto | memcache | files ...etc. will be default for $cache = __c();
phpfastcache::$storage = "auto";

$cache1 = phpfastcache();

$cache2 = __c("memcache");
$server = array(array("127.0.0.1",11211,100), array("128.5.1.3",11215,80));
$cache2->option("server", $server);

$cache3 = new phpfastcache("apc");

// how to write?
$cache1->set("keyword1", "string|number|array|object", 300);
$cache2->keyword2 = array("something here", 600);
__c()->keyword3 = array("array|object", 3600*24);

// how to read?
$data = $cache1->get("keyword1");
$data = $cache2->keyword2;
$data = __c()->keyword3;
$data = __c()->get("keyword4");

// free to travel between any caching methods

$cache1 = phpfastcache("files");
$cache1->set("keyword1", $value, $time);
$cache1->memcache->set("keyword1", $value, $time);
$cache1->apc->set("whatever", $value, 300);

$cache2 = __c("apc");
$cache2->keyword1 = array("so cool", 300);
$cache2->files->keyword1 = array("oh yeah!", 600);

$data = __c("memcache")->get("keyword1");
$data = __c("files")->get("keyword2");
$data = __c()->keyword3;

// multiple ? no problem

$list = $cache1->getmulti(array("key1","key2","key3"));
$cache2->setmulti(array("key1","value1", 300),
                  array("key2","value2", 600),
                  array("key3","value3", 1800),
                  );

$list = $cache1->apc->getmulti(array("key1","key2","key3"));
__c()->memcache->getmulti(array("a","b","c"));

// want more? check out document in source code

希望本文所述对大家的php程序设计有所帮助。