I have extensive experience in many languages. It has only been strengthened by learning other programming languages that at the time weren’t learned specifically for web programming.
My current experience with PHP for instance has made creating websites a powerful and enjoying endeavor. I have used CMS software such as WordPress, Drupal, Magento, OS Commerce and ClickCart Pro. All are PHP based. I’ve also created custom CMS systems to drive and manipulate websites. The aforementioned CMS systems are all driven with MySQL.
A website can be made into a very powerful entity using PHP, MySQL, jQuery and Ajax.