rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
[root@web01 ~]# yum repolist all 没看到有webtatic源试了很多次都装不了源
解决:
#rpm -qa |grep webtatic 查看
#rpm -e 删除上面搜的包
#rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm 再执行
#yum search php71 查看yum源是否有php7.1安装包