Hey, in case you are interested I constructed a reply to your post here: http://commonphp.blogspot.com/2011/05/keyword-functions-in-p...

In a nut shell though it's essentially a write up of my library which allows for creating keyword function wrappers so you can do stuff like:

   myStrPos(
       needle, 'peter', 
       haystack, 'is peter in here?'
   );