How to properly configure php and memcached to store sessions in mysql?

Question

PHP

The essence of the question: how to pull up the required version of php 5.6 on a clean (only apache is installed) (what repository are you using?) and install pecl-php-memcache pecl-php-memcached to it.
When installing pecl, I start to have conflicts with dependencies that he himself pulled up (php 5.3 common)
centOS 6.8
Share repositories.
Under 5.6 puff I only found https://webtatic.com/packages/php56/