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

How to Install LAMP on RHEL-based Distros

RHEL-based Install LAMP WebServer

How to Install Apache, MySQL/MariaDB and PHP 7 on RHEL-based GNU/Linux Distributions – Step by step Tutorial.

And LAMP for CentOS has become a de facto Development Standard. Today, the products that make up the LAMP stack are included by default in nearly all GNU/Linux distributions, and together they make a powerful web application platform.

How to Install LAMP Server on CentOS - Featured

GNU/Linux RHEL-based LAMP Web Server Installation Guide