>>9 It's an opinion, not a lie. Yes, PHP can do things javascript can't, but there are better alternatives such as Node, Python, ASP.NET. You claim to be security-conscientious yet you don't seem to be aware of just how poorly-designed PHP is as a language.
I was also being somewhat facetious when I said it's a mistake to learn it. Certainly learning a language is never a bad thing, but please for the love of god don't use PHP in production. Pick a better alternative.
Here's a post be a great developer on why PHP is a piece of crap: http://eev.ee/blog/2012/04/09/php-a-fractal-of-bad-design/