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

How to Install PHP 5.6 on Debian Gnu/Linux Distro

GNU/Linux Debian Installing PHP 5.6 Guide

How to Install PHP 5.6 on 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 Repo includes also All the most Useful Extensions for PHP usage.

Finally, this Setup is valid for all others Debian-based Distros like:

  • Kali
  • MX Linux
  • Deepin
  • Parrot
  • antiX
  • SparkyLinux
  • Q4OS
  • Vanilla OS
  • Netrunner
  • Voyager Debian
  • MakuluLinux
  • Elive
  • LMDE
  • Devuan
  • (You may just need to Discover what’s the Parent Release)

How to Install PHP 5.6 on Debian GNU/Linux Distro

GNU/Linux Debian PHP 5.6 Installation Guide