Since the new version of PHP i.e. PHP 7 is due to be released in November 2015. PHP is the programming language that Moodle is written in and is known as the server side scripting language.
Catalyst NZ the Moodle Partner from New Zealand have shared their tests of Moodle with PHP 7. The main improvement of using Moodle with PHP 7 is the Speed which may result in more requests your web hosting infrastructure can handle in a given time period. Read More