2 different versions of PHP (cli) in Ubuntu 14.04LTS

I installed PHP 5.6 on Ubuntu 14.04LTS using the following commands:

sudo add-apt-repository ppa:ondrej/php5-5.6
sudo apt-get update
sudo apt-get install php5

But when I run the command php -v I get the following response:

PHP 5.3.29 (cli) (built: Feb  3 2016 18:12:10) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2014 Zend Technologies

However, if I run the command php5 -v I get the following response:

PHP 5.6.18-1+deb.sury.org~trusty+1 (cli) 
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies

What did I do wrong?