What Version of PHP Is Required?

PHP 5.6 as a minimum

As PHP 5.5 has reach end of life in July 2016 the minimum supported version of PHP is PHP 5.6.

Option One: Ask Your Host

Your web host should be able to tell what version of PHP is running on the server.

Option Two: Find Out Yourself

Also you can find out yourself as follows:

1) Create a new file phpversion.php

2) Add a single line of code: <?php echo phpversion(); ?>

3) Upload the file to the your web site

4) View the file in a browser at http://www.yoursite.com/phpversion.php

5) Once you have the version number you may delete the phpversion.php file from your web site.