I've been using Sublime Text 2 for the past year or so, but I recently picked up a copy of PhpStorm (by the same company) during their last 75% sale. I've been

I've been using Sublime Text 2 for the past year or so, but I recently picked up a copy of PhpStorm (by the same company) during their last 75% sale. I've been using that ever since and almost never use ST2 anymore (I really miss multiple-cursors, so I still use it for that). PhpStorm gives me so much more information about the code, such as validating types (based on type hinting), showing warnings when the wrong type is used, automatically updates DocBlocks with correct information, allows very fast jumping to the source code of a function call, quickly find all references to a specific function or class, intelligent popup of callable functions on an object (again, using Type Hinting to know the object's type). It's really been a huge difference. Yes, there are some weird things to get used to (default OS X keymap uses a lot of non-standard keys), but overall it's pretty damn useful.