[PHP学习] 记录页面执行时间php代码
[*]<?php
[*]class runtime
[*]{
[*]var $StartTime = 0;
[*]var $StopTime = 0;
[*]
[*]function get_microtime()
[*]{
[*]list($usec, $sec) = explode(' ', microtime());
[*]return ((float)$usec + (float)$sec);
[*]}
[*]
[*]function start()
[*]{
[*]$this->StartTime = $this->get_microtime();
[*]}
[*]
[*]function stop()
[*]{
[*]$this->StopTime = $this->get_microtime();
[*]}
[*]
[*]function spent()
[*]{
[*]return round(($this->StopTime - $this->StartTime) * 1000, 1);
[*]}
[*]
[*]}
[*]
[*]//例子
[*]$runtime= new runtime;
[*]$runtime->start();
[*]
[*]//你的代码开始
[*]
[*]$a = 0;
[*]for($i=0; $i<1000000; $i++)
[*]{
[*]$a += $i;
[*]}
[*]
[*]//你的代码结束
[*]
[*]$runtime->stop();
[*]echo "页面执行时间: ".$runtime->spent()." 毫秒";
[*]?>
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