yes that and bots, and God knows what other back end programs; PHP is decent at the one thing it does (way better than Perl 5 - the thing it replaced), but why limit yourself to just being able to code only web apps? to me that's PHP's biggest weakness, but again that's just my opinion
to me what I still don't understand is why people aren't willing to learn and migrate to either ruby or python... they are very easy to use and understand (just as easy as PHP imo), while being very powerful and flexible at the same time; plus they're popular enough with large enough communities (though yes at times there are jerks in the ruby side - but they are very helpful when asking ruby questions)