PHP计算程序运行时间的类

 1 class timer { 
 2  var $StartTime = 0; 
 3 var $StopTime = 0; 
 4 var $TimeSpent = 0; 
 5 function start(){ 
 6   $this->StartTime = microtime(); 
 7 } 
 8 function stop(){ 
 9   $this->StopTime = microtime(); 
10 } 
11 function spent() { 
12   if ($this->TimeSpent) { 
13    return $this->TimeSpent; 
14   } else { 
15    $StartMicro = substr($this->StartTime,0,10); 
16    $StartSecond = substr($this->StartTime,11,10); 
17    $StopMicro = substr($this->StopTime,0,10); 
18    $StopSecond = substr($this->StopTime,11,10); 
19    $start = doubleval($StartMicro) + $StartSecond; 
20    $stop = doubleval($StopMicro) + $StopSecond; 
21    $this->TimeSpent = $stop - $start; 
22    return substr($this->TimeSpent,0,8)."秒"; 
23   } 
24 }
25 }//end class timer;
26 
27 
28 $timer = new timer; 
29 $timer->start(); 
30 $temp=0; 
31 for($i=0;$i<10000;$i++) for($j=0;$j<$i;$j++) $temp ++; 
32 $timer->stop(); 
33 echo "循环 $temp 次，运行时间为 ".$timer->spent();

1 //脚本运行时间
2  $start_time = array_sum(explode(" ",microtime())); 
3  $run_time = array_sum(explode(" ",microtime())) - $start_time; 
4  echo('<center>Script Run Time: '.$run_time.'</center>');

posted on 2010-10-29 15:01 Dufe王彬阅读(397) 评论(0) 编辑收藏举报