The latest SCL offers:

Python 3.x 2.x
PHP 5/6/7
Node.js
Ruby
Perl
MariaDB and MySQL
Apache httpd

On CentOS 7:
sudo yum install centos-release-scl

On CentOS 6.X:
sudo yum install centos-release-SCL

To enable and run applications from the SCL, you need to install the following package.
sudo yum install scl-utils-build

You can browse a complete list of packages available from the SCL repository by running:
yum --disablerepo="*" --enablerepo="scl" list available

Install and Enable a Package from the SCL

Search for SCL packages

yum --disablerepo="*" --enablerepo="scl" search