On a web server running on top of CentOS 7, the default version of PHP is still stuck on php 5.4.x
When online servers are setup, for some reason the allocated partitions on the hard drive may need to be adjusted manually to take advantage of the the amount of space available. These instructions are specific to Centos but similar likely applies to other Linux distros.
We can look at what the current partitions and there allocated size by using the df command. the -h flag sets the out put to be human readable