Update Server PHP Version to 5.4.10 Via the Command Line

Installing PHP 5.4.* on Ubuntu 12.04 Simply add the PPA repository:

sudo add-apt-repository ppa:ondrej/php5-oldstable

And install it:

sudo apt-get update
sudo apt-get install php5

This should allow you to use PHP 5.4.10 (or whatever the most recent “Old Stable PHP” is).