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这有一个测试页面执行时间的类：
 
 
修改时间：[2009/09/06 19:54]    阅读次数：[736]    发表者：[起缘]
 
<?
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();
?>