PHP Coding Standards

Coding Standards is one of the topics most programmers either do not come across or do not find useful. Some think it is not for me as I am new to coding.
But in my opinion it is the most useful chapter programmers should learn as soon as programmers learn basic programming in any programming language.

Here is the PHP coding standards PHP official site also refers:

You can skip the first page there.

Here is another link for coding standards.