$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install PHP 5.6 on Debian Gnu/Linux Distro

GNU/Linux Debian Installing PHP 5.6 Guide

Hi! The Tutorial shows you Step-by-Step How to Install PHP 5.6 in Debian GNU/Linux Distribution.

And to get the PHP 5.6 Debian Installation, you have to Manually Setup the Debian Apt PPA Repository.

Finally, this PHP 5.6 PPA includes also All the most Useful Extensions for PHP usage.

How to Install PHP 5.6 on Debian Linux - Featured

GNU/Linux Debian PHP 5.6 Installation Guide