Eclipse
PHP Development Tools all-in-one edition, Version 2.0
Pros:
Show Syntax Errors/Warnings in a Tab
Show “Tasks” in a Tab (matches @TODO texts)
Subversion plugin includes repository browser
Cons:
Slow
No visual editor for HTML
Slow
No wordwrap
Slow
Cannot disable code folding
Slow
Syntax Errors/warnings cannot be customised or disabled for specific files
NetBeans
PHP Edition, Version 6.5
Pros:
Subversion support is built-in
(I love the inline Visual changes: coloured tags for add/change/delete blocks of code)
Show “Tasks” in a Tab (matches @TODO texts)
Cons:
No visual editor for HTML
No wordwrap
Notepad++
Notepad++, Version 5.1.1
Pros:
Really Fast (well this is more a text-editor than a fully featured IDE, so this is to be expected)
Cons:
Opened file tabs difficult to use (use Window Manager plugin instead)
Cannot fine-tune workspace components (eg. cannot have both Function List and Window Manager on the RHS)
Instead of “Projects” have “Sessions” and “Favourites”
Cannot disable Code Folding