Ken's Tech Note

php 7.2 is the standard component of Ubuntu 16.04. The following steps can upgrade it to php7.3 sudo apt update sudo apt upgrade sudo apt install software-properties-common sudo add-apt-repository ppa:ondrej/php sudo apt update sudo apt install php7.3-fpm sudo apt install php7.3-common php7.3-mysql php7.3-xml php7.3-xmlrpc php7.3-curl php7.3-gd php7.3-imagick php7.3-cli php7.3-dev php7.3-imap php7.3-mbstring php7.3-opcache php7.3-soap php7.3-zip php7.3-intl -y