Have a look at the software collections library by RedHat if you are running CentOS. PHP 5.4, 5.5 and 5.6 all available.
Remember suhosin will be REQUIRED to keep your clients locked into their directories.
I have managed to get one of my clients on zVPS.uk working with PHP 5.4 through SCL
Remember suhosin will be REQUIRED to keep your clients locked into their directories.
I have managed to get one of my clients on zVPS.uk working with PHP 5.4 through SCL