PHP display pageload time

Its very useful to know how long your pages took to process. This not only gives you some idea of the efficiency of your websites and of the server running time. This code can help you diagnose problems, benchmark code corrections/additions, etc. The best way to do this is program PHP to read the system time at the beginning of the page, scan it again near the end, and then work out the difference between the values. To get us started, just add the following basic code near the top of your page, before all the main content:

 
<?php
$endtime = microtime();
$endarray = explode(" ", $endtime);
$endtime = $endarray[1] + $endarray[0];
$totaltime = $endtime - $starttime;
$totaltime = round($totaltime,5);
echo "This page loaded in $totaltime seconds.";
?>