<?
class timer
{ var $StartTime = 0;
var $StopTime = 0;
var $TimeSpent = 0;
function start(){
$this->StartTime = microtime();}
function stop(){
$this->StopTime = microtime();}
function spent(){
if ($this->TimeSpent) {
return $this->TimeSpent;
} else {
$StartMicro = substr($this->StartTime,0,10);
$StartSecond = substr($this->StartTime,11,10);
$StopMicro = substr($this->StopTime,0,10);
$StopSecond = substr($this->StopTime,11,10);
$start = doubleval($StartMicro) + $StartSecond;
$stop = doubleval($StopMicro) + $StopSecond; $this->TimeSpent = $stop - $start; return substr($this->TimeSpent,0,8)."秒"; } }// end function spent(); }//end class timer; //例子 $timer = new timer; $timer->start(); /* 你的代码放在此处 */ $timer->stop(); echo "执行本SCRIPT共".$timer->spent(); ?>