Originally Posted by StuartD

php5 has been around since 2004.... 3 years is plenty of time to get over your fears and learn something new. It's MUCH better in terms of speed, stability and functionality. It has been for a long time.

People who stick with php4 because of the "if it isn't broke, don't fix it" approach must still be using a 7 pound cell phone, because there's obviously no need for better service or more features.