<?php
/**
?* PHP腳本執(zhí)行時間計算
?*/
class runtime
{
??? var $StartTime = 0;
??? var $StopTime = 0;


??? function get_microtime()
??? {
??????? list($usec, $sec) = explode(' ', microtime());
??????? return ((float)$usec + (float)$sec);
??? }


??? function start()
??? {
??????? $this->StartTime = $this->get_microtime();
??? }


??? function stop()
??? {
??????? $this->StopTime = $this->get_microtime();
??? }


??? function spent($echo=false,$title='')
??? {
??????? $spent = sprintf('%.4f',round(($this->StopTime - $this->StartTime) * 1000, 1)/1000);
??????? if($echo){
??????????? echo? $title."執(zhí)行時間:{$spent}秒<br/>";
??????? }else{
??????????? return $spent;
??????? }
??? }
??? function clear()
??? {
??????? $this->StartTime = 0;
??????? $this->StopTime = 0;
??? }


}


#測試腳本代碼
$runtime= new runtime;
$runtime->start();
$a = 0;
for($i=0; $i<100000; $i++)
{
??? $a *= $i;
}
$runtime->stop();


$spent_time = $runtime->spent($echo=true, '測試腳本');
$runtime->clear();

?>

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