添加源地址执行三条命令,添加php的源地址,更新,安装sudoapt-getinstallsoftware-properties-commonsudoadd-apt-repository-yppa:ondrej/phpsudoapt-getupdatesudoapt-getinstallphp7.2查看有没有php7的包sudoaptlistgrepphp安装PHPnginx使用php的话要用到php7.2-fpm,所以要安装sudoapt-getinstallphp7.2-mysqlphp7.2-fpmphp7.2-curlphp7.2-xmlphp7.2-gdphp7.2-mbstring