I've answered this question many times recently. I think it should be put in
the FAQ.
Try copying PHP.EXE and PHP4TS.DLL to the Xitami directory and adding the
following to defaults.cfg (or whatever):
[filter]
.php=php.exe
.php3=php.exe
.phtml=php.exe
This works here.
Owen Rudge
http://www.owenrudge.co.uk/
http://www.gamearchive.uk.tt/