PHP is here to stay and will have better documentation over time. PHP programmers will start writing awesome, meaningful and standard code as more and more languages and tools make it possible to compile code in a specific language into a PHP code. One example is the Haxe Programming Language. I jumped onto other programming languages, such as Python and SPA with JS, some time ago; but I am now investing more of my time in Haxe.

All that being said, I am also wary of the all-in-one kit and its imminent trouble. I have been seeking comments on it from the public here - https://news.ycombinator.com/item?id=9111742