microtime如何在php

Question

PHP mico時間，我想使用microtime來處理我的應用程序

Answer 1

我認爲PHP5的PHP.net腳本示例非常簡單。

<?php 
// Put this at the start of your script 
$time_start = microtime(true); 

// This is where your script should be executing, 
// but instead, we sleep for a while 
usleep(100); 

// Calculation at the end of the script 
$time_end = microtime(true); 
$time = $time_end - $time_start; 

// Do something with the results 
echo "Did nothing in $time seconds\n"; 
?>