查看 centos 版本
# cat /etc/centos-release
删除之前的 php 版本
# yum remove php* php-common
rpm 安装 Php7 相应的 yum源
CentOS/RHEL 7.x:
# rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
CentOS/RHEL 6.x:
# rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
yum安装php7
# yum install php70w
安装其他插件(选装)
php70w
php70w-bcmath
php70w-cli
php70w-common
php70w-dba
php70w-devel
php70w-embedded
php70w-enchant
php70w-fpm
php70w-gd
php70w-imap
php70w-interbase
php70w-intl
php70w-ldap
php70w-mbstring
php70w-mcrypt
php70w-mysql
php70w-mysqlnd
php70w-odbc
php70w-opcache
php70w-pdo
php70w-pdo_dblib
php70w-pear
php70w-pecl-apcu
php70w-pecl-imagick
php70w-pecl-xdebug
php70w-pgsql
php70w-phpdbg
php70w-process
php70w-pspell
php70w-recode
php70w-snmp
php70w-soap
php70w-tidy
php70w-xml
php70w-xmlrpc