Tulip IDE is a PHP IDE made in PHP-GTK and initiated aroun 2004 as an all-PHP solution to produce PHP code. It allows connections to databases and CVS directories, as well as color-syntaxing, documentation linking, etc.
It's been inactive for a while now though, but might still be useful for anyone thinking about starting a new project of this kind (PHP-GTK 2 is out)
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Hold Liable
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.