How to switch PHP Versions on LAMP Server

How to switch PHP Versions on LAMP Server

Use multiple PHP versions on same server and manage currently running (default) php version for terminal. Install multiple PHP Versions: sudo add-apt-repository ppa:ondrej/php sudo apt-get update sudo apt-get install php8.1 sudo apt-get install php8.4 sudo a2enmod php8.1 sudo a2enmod php8.4 Switch: sudo update-alternatives --config php