A blog about stuff you worked on and challenged you tackled will be more than enough for potential employer. Not sure if it fits the context but have a look at

A blog about stuff you worked on and challenged you tackled will be more than enough for potential employer. Not sure if it fits the context but have a look at Matthias Noback website http://php-and-symfony.matthiasnoback.nl/ http://php-and-symfony.matthiasnoback.nl/