phpコードの運行時間はクラスコードを調べて共有します。

 
//date:2011-08-05 
class RunTime//        
{ 
private $starttime;//         
private $stoptime;//         
private $spendtime;//         
function getmicrotime()//              
{ 
list($usec,$sec)=explode(" ",microtime()); 
return ((float)$usec + (float)$sec); 
} 
function start()//        ，            
{ 
$this->starttime=$this->getmicrotime(); 
} 
function end()//          
{ 
$this->stoptime=$this->getmicrotime(); 
$this->spendtime=$this->stoptime-$this->starttime; 
//return round($this->spendtime,10); 
} 
function display() 
{ 
//$this->end(); 
echo "<p>    ：".round($this->spendtime,10)." </p>"; 
} 
} 
/*     
$timer=new Runtime(); 
$timer->start();