Creating a PHP Script Timer

This timer is easy to implement and determines the time taken for a php script to execute correct to a microsecond.

Insert this code at the top of the page:

<?php 
	  $mtime = microtime(); 
	  $mtime = explode(' ', $mtime); 
	  $mtime = $mtime[1] + $mtime[0]; 
	  $starttime = $mtime; 
?>

Then at the bottom of the page add the following:

<?php 
	  $mtime = microtime(); 
	  $mtime = explode(" ", $mtime); 
	  $mtime = $mtime[1] + $mtime[0]; 
	  $endtime = $mtime; 
	  $totaltime = ($endtime - $starttime); 
	  echo 'This page was created in ' .$totaltime. ' seconds.'; 
?>

PHP's microtime() function returns the current Unix timestamp with microseconds.