When I want to run an IonCube encrypted project on my osx, I realized that I didn't have IonCube Loader installed. Because my PHP is installed using homebrew, I'm going to do the same way for IonCube Loader.

Check PHP Version

It is very important step so we'll know which version of IonCube Loader to be installed

$ php -v
PHP 5.6.14 (cli) (built: Oct 11 2015 07:19:58)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies

My PHP version is 5.6 so I'm going to check whether homebrew has IonCube Loader for PHP 5.6

Check IonCube Loader Availability

$ brew search ioncube
homebrew/php/php53-ioncubeloader
homebrew/php/php54-ioncubeloader
homebrew/php/php55-ioncubeloader
homebrew/php/php56-ioncubeloader

We can see that there is availability for PHP 5.6.

Install IonCube Loader

$ brew install homebrew/php/php56-ioncubeloader

Restart Server

Restart server first to reflect the changes

$ sudo apachectl restart

Check IonCube Loader Installation

We can check if the installation is successful using php -v. We can see that there is an added information about ionCube version.

$ php -v
PHP 5.6.14 (cli) (built: Oct 11 2015 07:19:58)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
    with the ionCube PHP Loader v5.0.17, Copyright (c) 2002-2015, by ionCube Ltd.

That's all. It is easy, isn't it?