How to Completely uninstall PHP and MySQL at ubuntu Completely uninstall PHP and MySQL at ubuntu. Completely remove php from ubuntu 17.10 using terminal using following code 1st Step:-sudo apt-get remove –purge php* 2nd Step:-sudo apt-get purge php* 3rs Step:-sudo apt-get autoremove. 4th Step:-sudo apt-get autoclean. 5th Step:-sudo apt-get remove dbconfig-php. 6th Step:-sudo apt-get dist-upgrade. Then install fresh PHP in ur system; 7th Step:-sudo apt-get install php. Completely remove MySql