yum源默认的版本过低了，手动安装有一些麻烦，想采用Yum更新安装的可使用下面的方案： 1.检查当前安装的PHP包php
yum list installed | grep phpmysql
若是有安装的PHP包，先删除他们web
yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-gd.x86_64 php-ldap.x86_64 php-mbstring.x86_64 php-mcrypt.x86_64 php-mysql.x86_64 php-pdo.x86_64sql
二、更换rpm源php7
···php-fpm
Centos 5.X： rpm -Uvh http://mirror.webtatic.com/yum/el5/latest.rpm CentOs 6.x： rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm CentOs 7.X： rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm ···url
若是想删除上面安装的包，从新安装.net
rpm -qa | grep webstatic rpm -e 上面搜索到的包便可pdo
3.运行yum installrem
··· php5.5 yum install php55w.x86_64 php55w-cli.x86_64 php55w-common.x86_64 php55w-gd.x86_64 php55w-ldap.x86_64 php55w-mbstring.x86_64 php55w-mcrypt.x86_64 php55w-mysql.x86_64 php55w-pdo.x86_64
php5.6 yum install php56w.x86_64 php56w-cli.x86_64 php56w-common.x86_64 php56w-gd.x86_64 php56w-ldap.x86_64 php56w-mbstring.x86_64 php56w-mcrypt.x86_64 php56w-mysql.x86_64 php56w-pdo.x86_64
php7.0 yum install php70w.x86_64 php70w-cli.x86_64 php70w-common.x86_64 php70w-gd.x86_64 php70w-ldap.x86_64 php70w-mbstring.x86_64 php70w-mcrypt.x86_64 php70w-mysql.x86_64 php70w-pdo.x86_64 ···
4.安装PHP FPM ··· yum install php55w-fpm yum install php56w-fpm yum install php70w-fpm systemctl enable php-fpm.service【开机自启动】 ···
本次更新升级PHP版本便可完成！