Eclipse PDT and Quick Outline

A great feature which eclipse PDT has is the "Quick Outline".

Much like the one in the Java perspective, the Quick Outline displays a list of functions/variables/defines/classes/etc in the current file in a filterable dialog.

It can be accessed via the shortcut key Ctrl+O. I'm not sure if this is the default key binding or not, but it is definitely useful to have.

If it weren't for this feature I definitely would of stuck with PHPeclipse, which has many other great features including variable highlighting, marking of unused/undefined variables and better integration with Eclipse.