I'm a big fan of Seamonkey, for me it's much less buggy than Kompozer and far simpler to use. I recall that it was removed from the Precise repos due to the PPA not being maintained but after doing a search I found this https://launchpad.net/~joe-nationnet.../seamonkey-dev which seems to have a Quantal build. I haven't tested it so I can't really recommend it. As Seamonkey is updated regularly I would sugest checking out the official website an downloading a copy from there http://www.seamonkey-project.org/ that's what I've been doing and it been working fine for me on Precise 12.04. Although Seamonkey does not have a CSS editor like Kompozer, this still works better for me cause I find it easier to edit CSS directly. To be honest I find the Kompozer interface a little confusing Regarding a PHP WYSIWIG editor I think you'll be hard pressed to find any reputable software resembling that (open or closed). Being a logic-based computer programming language and not a mark-up language g
nerally means the closest you'll get to WYSIWYG is an IDE. I use Netbeans for PHP development but many people also use Eclipse.