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

How to Install LAMP Php 7 on Gnu/Linux Distros

GNU/Linux Installing LAMP PHP 7 Guide

How to Install LAMP with PHP 7.x on GNU/Linux Distributions – Step by step Tutorial.

And LAMP for Linux is de facto Web Development Standard. Today, the products that make up the LAMP stack are included by default in nearly all GNU/Linux distributions.

How to Install LAMP Php 7 in Gnu/Linux Distros

GNU/Linux Install LAMP PHP 7 Web Server Guide