計算php程式執行時間的程式

 <?php

phpinfo();

/**

 * Simple function to replicate PHP 5 behaviour

 */

function microtime_float()

{

    list($usec, $sec) = explode(" ", microtime());

    return ((float)$usec + (float)$sec);

}

$time_start = microtime_float();

// Sleep for a while

usleep(100);

$time_end = microtime_float();

$time = $time_end - $time_start;

echo "exec time in $time seconds\n";

?> 

能計算php腳本time

本文轉自 liang3391 51CTO部落格，原文連結:http://blog.51cto.com/liang3391/800105