centos安装php7

https://webtatic.com/packages/php71/

# centos6
yum install epel-release
rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

# centos7
yum install epel-release
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm