RE: What Happened to PHP?

I guess one could write a huge book about how NOT to develop a programming language based on the history of PHP. Has anybody tried to estimate the cost of replacing old PHP based software due to incompatibilities of different versions? My advice is that if you want to learn programming better stay away from PHP, if You can. There are plenty of other options around. Of course many companies still use PHP so it's possible you will have to learn it anyway.