This is a simple process with all instructions for the Development Environment on Mac OS X.
All steps will be launch in your Terminal (/Applications/Utilities/Terminal).
If you don't already have XCode installed, it's best to first install the command line tools as these will be used by homebrew:
I posted several talks about compiling PHP from source, but everyone was trying to convince me that a package manager like Homebrew was a more convenient way to install.
The purpose of Homebrew is simple: a package manager for macOS that will allow you to set up and install common packages easily and allows you to update frequently using simple commands.
I used a clean installation of macOS Sierra to ensure all steps could be recorded and tested. In most cases you already have done work on your Mac, so chances are you can skip a few steps in this tutorial.
I’ve made this according to the installation instructions given on GetGrav.