profile.class.php (June 24, 2008)
Every now and then I want to profile a given part of PHP code. For example I want to quickly check wether my current changeset to GeSHi works faster or is horribly slower. For a big change I’ll stick to Xdebug and KCachegrind. But for a quick overview? Overkill in my eyes.
Say hello to profile.class.php, a simple timer class for PHP5 which you can use to get an overview about where how much time is spent. This is in no way a scientific method nor should you take the results of a single run as a basis for you decisions.
I’ve set an emphasize on an easy API so you don’t have to pollute your code with arbitrary hoops and whistles.
UPDATE: You can find the current updated source in the SVN repo of GeSHi.
Simple example
This is a quick example on how you could use the class:
<?php
require 'profile.class.php'; // should be obvious ;-)
// here might be uninteresting code
profile::start('overall'); // start a timer and give it a name
// we add this one to get a time
// for the overall runtime
// this is the code you want to profile
profile::start('$_SERVER');
$foo = count($_SERVER);
profile::stop(); // stop the last active counter
profile::start('$GLOBALS');
$bar = count($GLOBALS);
profile::stop();
profile::stop(); // stop overall timer
profile::print_results(profile::flush()); // print the results