i know that under Linux, it's got Quanta Plus on it....and you can get a php debugger with that.
or if you got $$$$ or only need 30 days to try it out check out Zend Studio over at http://www.zend.com it's a bada$$ app.
__________________ <center><h2><font color=\"red\">C:\\ Is the root of all evil</font></h2>
<hr width=\"50%\"> phiber@sysdum.com
spam this account, it's fun.