# Upgrade php 7.3 Ubuntu 18.04 LTS #### Since Ubuntu 18.04 comes with php 7.2, you must install from the ppa:ondrej repository: ``` sudo add-apt-repository ppa:ondrej/php sudo apt update sudo apt install php7.3 ``` #### Install all the existing php 7.2 modules on php 7.3: ``` sudo apt install $(apt list --installed | grep php7.2- | cut -d'/' -f1 | sed -e 's/7.2/7.3/g') ``` #### Remove old PHP version: ``` apt purge php7.2 php7.2-common ``` #### If running Apache disable existing Apache php7.2 mod: ``` a2dismod php7.2 ``` #### Enable Apache php7.3 mod: ``` a2enmod php7.3 ``` #### Restart Apache: ``` systemctl restart apache2 ```