PHP中strtr与str_replace函数运行性能简单测试示例

砸漏

发布于 2020-10-28 16:31:48

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发布于 2020-10-28 16:31:48

文章被收录于专栏：恩蓝脚本

本文实例讲述了PHP中strtr与str_replace函数运行性能简单测试。分享给大家供大家参考，具体如下：

strtr与str_replace函数性能，很简单的一个测试，只是简单的测下，供参考，代码如下：

<?php
require_once('Timer.php');
$target = 'qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./qwertyuiop[]asdfghjkl;\'zxcvbnm,./';
$count = isset($argv[1]) ? (int)$argv[1] : 1;
$needle = 'vb';
Timer::getInstance()- begin();
for($i = 0; $i < $count; $i++) {
 strtr($target, $needle, '*');
}
echo "strtr exec {$count} times used time: " . Timer::getInstance()- end()- gone() . " sec.\n";
//----------------------------------------------------------------------------------------------
Timer::getInstance()- begin();
for($i = 0; $i < $count; $i++) {
 str_replace($needle, '*', $target);
}
echo "str_replace exec {$count} times used time: " . Timer::getInstance()- end()- gone() . " sec.\n";

结果如下：