PHP 5.6.x Support Ends 31 Dec 2018 And PHP 7.0.x Support Ends 03 Dec 2018

In other words, PHP 5.6.x reaches end of life 31 Dec 2018 and PHP 7.0.x reaches end of life 03 Dec 2018. As a result, starting 01 Jan 2019, the supported versions of PHP will be 7.1.x and 7.2.x.

Supported Versions Per php.net
http://php.net/supported-versions.php