sudo apt-get install software-properties-common sudo add-apt-repository ppa:ondrej/php sudo apt update sudo apt install php7.1-fpm php7.1-mcrypt php7.1-cli php7.1-xml php7.1-mysql php7.1-gd php7.1-imagick php7.1-recode php7.1-tidy php7.1-xmlrpc 确认安装成功
php -v PHP 7.1.18-1+ubuntu16.04.1+deb.sury.org+1 (cli) (built: Jun 11 2018 14:22:30) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.1.18-1+ubuntu16.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies 文章来源: Ubuntu 下安装 PHP 7.1.17