以下为 CentOS 下安装 PHP 方法： 添加 epel 源 # rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm 添加 remi 源 # rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm 安装 PHP # yum --enablerepo=remi,remi-php55 install php-fpm php-common php-devel php-mysqlnd php-mbstring php-mcrypt 查看 PHP 版本 # php -v PHP 5.5.9 (cli) (built: Feb 11 2014 08:25:33) Copyright (c) 1997-2014 The PHP Group Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies