- Ubuntu 20.04+
$ sudo add-apt-repository ppa:ondrej/php
$ sudo apt update
$ sudo apt install php8.1-fpm php8.1-cli php8.1-common php8.1-opcache php8.1-mysql php8.1-phpdbg php8.1-mbstring php8.1-gd php8.1-imap php8.1-ldap php8.1-pgsql php8.1-pspell php8.1-soap php8.1-tidy php8.1-dev php8.1-intl php8.1-curl php8.1-zip php8.1-xml php8.1-xdebug