[eluser]Bramme[/eluser]
I've always heard that strpos (or strrpos for that matter) are better/faster alternatives then srrchr.
Should do some benchmarks though.
Edit: okay, done some benchmarks (my first actually :p)
I searched for the last occurence of the character 'j' in a paragraph of lorem ipsum text. Repeated it 100.000 times, strrpos was marginally faster: about 0.005-0.006 seconds, however, when searching for 'dj' (which doesn't occur in the paragraph) strrpos suddenly takes a full 2 more seconds.