I have about 8 years experience developing web sites and web scripts using LAMP.
I can use different frameworks such as Symfony, Zend, Yii, CakePHP, CodeIgniter, Kohana etc.
I use coding standards like Zend and PSR, so my code is clean, understandable and other developers don't have problems working with it. Also I use OOP and design patterns.
I also have rich experience with Wordpress, Magento, Drupal, Joomla and other systems.