Centos php7升级

#### 1.检查当前安装的PHP包
    yum list installed | grep php
 
如果有安装的PHP包，先删除他们
    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_64

####2、更换rpm源 
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

如果想删除上面安装的包，重新安装
    rpm -qa | grep webstatic
    rpm -e  上面搜索到的包即可

3.运行yum install 
    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】