Looking for little bit of advice on someting

The article I mentioned is talking about some lesser known programming languages like Erlang/Elixir which are functional. While functional programming doesn't really fit in php per say, you can learn a lot of things from it even though you won't get the full benefits. Erlang is a beast of a programming language and when used correctly can blow the top off of more common languages like PHP and such.

In conclusion: Write clean code, use proven libraries...

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