PHP: Check if PID is running

I needed to write a small function, that can check if a specific PID is running an linux/unix system.

Check it out on Gist: https://gist.github.com/3096556

Symfony2: Doctrine github Repos moved from symfony to doctrine

Today i tried to run php bin/vendors install and got this output:

and this:

You have to change dour deps file like this to resolve the problem:

old:

new:

Official change:
https://github.com/doctrine/DoctrineFixturesBundle/commit/479f10d068bd0b01e055aa2f555946893322b79c

PHP: Remove “empty” elements from Array

I recently read more about functional programming and found some functions in PHP that tend in that direction.

Like this function that removes all empty entrys from a array:

To understand what array_filter does, have a look at this version with foreach():