php函数直接返回数组的方法是最慢的

缓存文件,大家用的最多的估计就是 return array(); www.phperz.com 实验证明,这种方法是较慢的,试考查以下的3个文件. www~phperz~com 其一. $arr.php 直接返回 数组 php程序员之家 ?php return Array ( "db_host1" = 123, "db_host2" = 123, "db_host3" = 12

缓存文件,大家用的最多的估计就是 return array();

www.phperz.com

实验证明,这种方法是较慢的,试考查以下的3个文件.

www~phperz~com

其一. $arr.php 直接返回 数组 php程序员之家

return Array
(
"db_host1" => 123,
"db_host2" => 123,
"db_host3" => 123,
"db_host4" => 123,
"db_host5" => 123,
"db_host6" => 123,
"db_host7" => 123,
"db_host8" => 123,
"db_host9" => 123,
"db_host10" => 123,
"db_host11" => 123,
"db_host12" => 123,
"db_host13" => 123,
"db_host14" => 123,
"db_host15" => 123,
"db_host16" => 123
);
?>

www~phperz~com

其二, ini.php 为INI文件

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db_host1 =123
db_host2 =123
db_host3 =123
db_host4 =123
db_host5 =123
db_host6 =123
db_host7 =123
db_host8 =123
db_host9 =123
db_host10 =123
db_host11 =123
db_host12 =123
db_host13 =123
db_host14 =123
db_host15 =123
db_host16 =123
其三,str.php 为序例化后的数组 phperz.com

return
'a:16:{s:8:"db_host1";s:3:"123";s:8:"db_host2";s:3:"123";s:8:"db_host3";s:3:"123";s:8:"db_host4";s:3:"123";s:8:"db_host5";s:3:"123";s:8:"db_host6";s:3:"123";s:8:"db_host7";s:3:"123";s:8:"db_host8";s:3:"123";s:8:"db_host9";s:3:"123";s:9:"db_host10";s:3:"123";s:9:"db_host11";s:3:"123";s:9:"db_host12";s:3:"123";s:9:"db_host13";s:3:"123";s:9:"db_host14";s:3:"123";s:9:"db_host15";s:3:"123";s:9:"db_host16";s:3:"123";}';
?>

php程序员之家

分别对3个文件 进行10000次包含返回数组测试

phperz.com

$t1 = microtime(true);

www.phperz.com

$file1 = './arr.php';
$file2 = './ini.php';
$file3 = './str.php'; php程序员站

for($i=0; $i//$arr = require $file1;
//$arr = parse_ini_file($file2);
$arr = unserialize(require $file3);
} php程序员站

$t2 = microtime(true);
echo $t2-$t1; www~phperz~com

得出结果:

phperz.com

arr.php 5.7820551395416

php程序员之家

ini.php 5.3364160060883

phperz~com

str.php 5.5691919326782 www.phperz.com

其中,排得最快的居然是 INI文件.

www~phperz~com

其次是序列化, 最慢的是直接 return 数组 www~phperz~com

结论:

php程序员之家

ini 文件不错,方便书写(可以考虑) php程序员之家

保存数组, 用序列化! php程序员站