I have asked this question of many people and have gotten two different answers. One side says yes and the other side of course says no. One of the upsides of learning PHP is that there are still websites out there today that use it. However, that is also a down side to PHP. PHP is old and can be replaced by other languages, and we should be helping with that by re-writing our websites in newer and better languages.
In my conclusion, I say that yes, it is still worth it to learn PHP, but only because we should understand it in order to replace it with newer and better languages. I would however be interested in hearing your guys opinions on this topic, and hear new or refined reasons on why it is or isn't worth it to still learn PHP.