Calculate execution time

For debugging purposes, it is a good thing to be able to calculate the execution time of a script. This is exactly what this piece of code can do.

<?php

//Create a variable for start time

$time_start = microtime(true);

// Place your PHP/HTML/JavaScript/CSS/Etc. Here

//Create a variable for end time

$time_end = microtime(true);

//Subtract the two times to get seconds

$time = $time_end - $time_start;

echo 'Script took '.$time.' seconds to execute';

?>