复制代码 代码如下:

<?php
 $t = new executeTime;
 phpinfo();
 class executeTime{
     private $microtime;
     public function __construct(){
         $this->microtime = microtime(true);
     }

         public function getNow(){
                 $this->__dectruct();
         }

     public function __destruct(){
         if (empty($_SERVER[\'REQUEST_TIME_FLOAT\']))
             echo \'<div style=\"color:#fff;background:#000;position:absolute;top:0px;right:0px;padding:3px 6px;\">本次执行时间：\', microtime(TRUE) - $this->microtime, \'秒</div>\';
         else
             echo \'<div style=\"color:#fff;background:#000;position:absolute;top:0px;right:0px;padding:3px 6px;\">本次执行时间：\', microtime(TRUE) - $_SERVER[\'REQUEST_TIME_FLOAT\'], \'秒</div>\';
     }
 }