PHP中strtr與str_replace函數運行性能簡單測試示例

2024-05-05 00:09:48

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本文實例講述了PHP中strtr與str_replace函數運行性能簡單測試。分享給大家供大家參考，具體如下：

strtr與str_replace函數性能，很簡單的一個測試，只是簡單的測下，供參考，代碼如下：

<?phprequire_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";

結果如下：

PHP,strtr,str_replace,運行性能