How do I upgrade PHP in Mac OS X?

Question

I feel this is an awfully obtuse question to ask, but strangely, this problem is poorly documented.

I would like to upgrade PHP, but there are several problems:

Answer 1

I use this: https://github.com/Homebrew/homebrew-php

The command is:

$ xcode-select --install

$ brew tap homebrew/dupes
$ brew tap homebrew/versions
$ brew tap homebrew/homebrew-php

$ brew options php56
$ brew install php56

Then config in your .bash_profile or .bashrc

# Homebrew PHP CLI
export PATH="$(brew --prefix homebrew/php/php56)/bin:$PATH"