Pick PHP if you're very concerned with being able to find a quick, cheap online host for your web-app and you don't want to bother with learning another language (or with learning how to deploy web-apps in other languages, which really isn't very hard).
I think he doesn't like all the upvotes for the snarky anti-PHP comment:
You don't really learn PHP so much as catch it. Like a disease.
At the risk of being modded down, the comment has some merit. PHP programmers usually gravitate to PHP without having much experience with related, but supposedly better, languages like Ruby, Python, Lua, etc. But PHP programmers who really dig into programming often leave for other languages. The Ruby and Python communities are full of ex-PHPers. But how many people from the Python or Ruby communities leave for PHP?
This isn't to say that PHP has no merit. It was my first web programming language. But maybe its merits don't stack up well against other languages, which is the subject of the original article.
I know I signed that as my final post, but I feel the need to assure you that I wouldn't be offended by something so silly.
Sometimes you just get bored with a place and feel like moving on :^)
I think I'll spend less time on sites like these and more playing this fine Buffet clarinet I picked up on Saturday. It's been a while, but my embouchure's returning already.
I guess that sort of works... but php is still serverside. Anyone doing web dev must learn javascript, but not necessarily php. Javascript would probably be competing with actionscript or any other client-side plugin stuff.