Uninstall php 7 in ubuntu 18.04

Question

I have a server that has an application that runs with PHP 5.6. But I upgraded the server from Ubuntu 14.04 to 18.04 and in the process I also upgraded PHP to 7.2. Now I\'m tryi

Answer 1

This will remove all php7 versions, be it php 7.0 or php 7.1 etc..

sudo apt-get purge php7.*
sudo apt-get autoclean
sudo apt-get autoremove

• apt/apt-get autoclean → cleans obsolete deb-packages, less than clean
• apt/apt-get autoremove → removes orphaned packages which are not longer needed from the system, but not purges them, use the --purge option together with the command for that.

**To Install PHP again **

sudo add-apt-repository ppa:ondrej/php
sudo apt-get update

if php7.0

sudo apt-get install php7.0

if php7.1

sudo apt-get install php7.1

if php7.2

sudo apt-get install php7.2

To switch that to the newer 7.1,7.2,7.3,7.4 version, first disable older PHP version:

user@test:~# sudo a2dismod php7.0

Then enable PHP 7.2:

user@test:~# sudo a2enmod php7.2
sudo service apache2 restart