centos安装php7

先卸载其他版本的php

rpm -qa|grep php 查看已经安装包

rpm -e php** 卸载包

添加源

centos 7

# 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 6

# rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

yum search php7*

搜索php7相关的包

yum install 选择安装需要的包就可以了