Page execution time

Question

How can I calculate the time taken to execute a page of code?

Answer 1

If what you are looking for is the wall-clock time, rather than the CPU execution time, then here is simple code to calculate:

Place this at the top of your page

$time_start     = microtime(true);

and this at the very bottom of that page.

echo "<br><b>Process took ". number_format(microtime(true) - $time_start, 2). " seconds.</b>";

and thats it!