To enable PHP in Apache add the following to httpd.conf and restart Apache:
LoadModule php5_module /usr/local/opt/php56/libexec/apache2/libphp5.so

The php.ini file can be found in:
/usr/local/etc/php/5.6/php.ini

✩✩✩✩ Extensions ✩✩✩✩

If you are having issues with custom extension compiling, ensure that
you are using the brew version, by placing /usr/local/bin before /usr/sbin in your PATH:

  PATH="/usr/local/bin:$PATH"

PHP56 Extensions will always be compiled against this PHP. Please install them
using --without-homebrew-php to enable compiling against system PHP.

✩✩✩✩ PHP CLI ✩✩✩✩

If you wish to swap the PHP you use on the command line, you should add the following to ~/.bashrc,
~/.zshrc, ~/.profile or your shell's equivalent configuration file:

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

✩✩✩✩ FPM ✩✩✩✩

To launch php-fpm on startup:
mkdir -p ~/Library/LaunchAgents
cp /usr/local/opt/php56/homebrew.mxcl.php56.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.php56.plist

The control script is located at /usr/local/opt/php56/sbin/php56-fpm

OS X 10.8 and newer come with php-fpm pre-installed, to ensure you are using the brew version you need to make sure /usr/local/sbin is before /usr/sbin in your PATH:

PATH="/usr/local/sbin:$PATH"

You may also need to edit the plist to use the correct "UserName".

Please note that the plist was called 'homebrew-php.josegonzalez.php56.plist' in old versions
of this formula.

To reload homebrew/php/php56 after an upgrade:
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.php56.plist
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.php56.plist
==> Summary
🍺 /usr/local/Cellar/php56/5.6.16: 330 files, 51M, built in 8.9 minutes