nukeevangelist writes:  

just travel over to eclipse.org :: Eclipse supports PHP development - get some insights

eclipse.org is an open source community whose projects are focused on providing an extensible development platform and application frameworks for building software. Eclipse provides extensible tools and frameworks that span the software development lifecycle, including support for modeling, language development environments for PHP and JAVA and others

get more insights at the developerpage eclipse.org - see what Eclipse can do for your work with php and of course phpnuke