PHP中strtr与str_replace函数运行性能简单测试示例

沃梦达教程 php开发

2023-01-25

这篇文章主要介绍了PHP中strtr与str_replace函数运行性能简单测试,结合具体实例形式对比分析了PHP中strtr与str_replace函数的测试运行效率,需要的朋友可以参考下

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：