<?php 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); $start = floatval($StartMicro) + $StartSecond; $stop = floatval($StopMicro) + $StopSecond; $this->TimeSpent = $stop - $start; return round($this->TimeSpent,8).'秒'; } } // end function spent(); } //end class timer; $timer = new timer; $timer->start(); //测试代码
$timer->stop(); echo '</br>运行时间为: '.$timer->spent(); unset($timer); ?>