View xdebug cachegrind files on Mac OS

Xdebug is key when it comes to optimizing PHP code. Today, I heard my colleague boot up a Windows machine just to run an application that could interpret a cachegrind file generated by our development server… surely there must be a Mac equivalent! The following instructions will let you interpret cachegrind files locally on your Mac. Continue reading View xdebug cachegrind files on Mac OS

[PHP] Faster array lookup than using in_array()

If you use arrays in PHP, one of the most common tasks you’ll find yourself doing is determining if Item A is in Array X. The function you would probably use in this case is PHP’s in_array.

[php]bool in_array ( mixed $needle , array $haystack [, bool $strict = FALSE ] )[/php]

This function works great and I recommend sticking to it when it makes sense. However, when you’re dealing with a very large haystack and need to run in_array() on thousands of values, you’ll discover that in_array isn’t particularly fast when cumulated over thousands of calls. Having recently run into this situation, I set up a little experiment to try two different approaches to in_array().

Continue reading [PHP] Faster array lookup than using in_array()