PHP Simple calculation page load time method _php tips

This article illustrates a simple way to calculate the load time of a page in PHP. Share to everyone for your reference. The implementation methods are as follows:

Simply put the start time on the page header, end time on the tail of the page, calculate the page load time

$start = time ();
Put a long operation to sleep
(2);
$diff = Time ()-$start;
Print "This page needed $diff seconds to load:-)";
If you are want a more exact value, your could use the 
//Microtime function

I hope this article will help you with your PHP program design.