How to Install PHP 5.4 or PHP 5.5 or PHP 5.6 on Ubuntu 16.04, 14.04 or…

Install PHP 5.4

Use the following set of command to add PPA for PHP 5.4 in your Ubuntu system and install PHP 5.4.

$ sudo apt-get install python-software-properties
$ sudo add-apt-repository ppa:ondrej/php5-oldstable
$ sudo apt-get update
$ sudo apt-get install -y php5

Check Installed PHP Version:

# php -v

PHP 5.4.35-1+deb.sury.org~precise+1 (cli) (built: Nov 19 2014 19:34:07)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies

Install PHP 5.5

Use the following set of command to add PPA for PHP 5.5 in your Ubuntu system and install PHP 5.5.

$ sudo apt-get install python-software-properties
$ sudo add-apt-repository ppa:ondrej/php
$ sudo apt-get update
$ sudo apt-get install -y php5.5

Check Installed PHP Version:

# php -v

PHP 5.5.19-1+deb.sury.org~precise+1 (cli) (built: Nov 19 2014 19:32:57)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies
    with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2014, by Zend Technologies

Install PHP 5.6

Use the following set of command to add PPA for PHP 5.6 in your Ubuntu system and install PHP 5.6.

$ sudo apt-get install python-software-properties
$ sudo add-apt-repository ppa:ondrej/php
$ sudo apt-get update
$ sudo apt-get install -y php5.6

Check Installed PHP Version:

# php -v

PHP 5.6.3-1+deb.sury.org~precise+1 (cli) (built: Nov 19 2014 19:34:53)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2014 Zend Technologies
    with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2014, by Zend Technologies