How to install PHP 5.3 on Ubuntu 14.04

How to install PHP 5.3 on Ubuntu 14.04

Installing old versions of PHP in modern OS can be tricky. Here is my instruction about how to install PHP 5.3 on Ubuntu 14.04.

Prepare

Become a root

sudo su

Optionally – generate locale files. That can be useful if you have non-english default localization

locale-gen en_US.UTF-8

Remove old PHP and Apache

Check out your current PHP packages list

dpkg -l|grep php

Backup old configs

cp -R /etc/php5 /etc/php5_old
cp -R /etc/apache2 /etc/apache2_old

Remove all current PHP packages and apache2 package as well

apt-get purge place-here-all-php-packages-found-in-previous-step-devided-by-space apache2

Installing new PHP and Apache

Switch to another repository

sed -i.bak "s/trusty/precise/g" /etc/apt/sources.list
apt-get update  

Install necessary packages

apt-get install apache2 php5 libapache2-mod-php5 apache2-mpm-itk libapache2-mod-rpaf php-pear php5-gd 
php5-mysql php5-common  php5-curl php5-cli apache2.2-common php5-xdebug

Optionally – prevent installed packages from updating with apt-get upgrade command

apt-mark hold apache2 php5 libapache2-mod-php5 apache2-mpm-itk libapache2-mod-rpaf php-pear php5-gd 
php5-mysql php5-common  php5-curl php5-cli apache2.2-common php5-xdebug

Revert back repository config

sed -i.bak "s/precise/trusty/g" /etc/apt/sources.list

Reboot your machine and check PHP version with command

php -v
Author: vlad