按以下步驟走
sudo apt install apt-transport-https ca-certificates curl software-properties-common
sudo?curl -fsSL https://packages.sury.org/php/apt.gpg | sudo apt-key add -
sudo add-apt-repository "deb https://packages.sury.org/php/ $(lsb_release -cs) main"
sudo apt update
sudo apt install php7.3 php7.3-fpm php7.3-common php7.3-cli?php7.3-zip?php7.3-xml?php7.3-gd?php7.3-mysql?php7.3-mbstring?php7.3-bcmath
