phpAjaxTags is a port to PHP from advanced java tag library "AjaxTags" (ajaxtags.sourceforge.net). To install - just extract zip file into Your root www dir. On-line demo http://www.2al.pl/phpAjaxTags/
The Open Code Quality Project offers Static Code Analyses as an free Online-Service for Open Source Code. Simply send your code, start the scan, receive the results.