如果之前已经安装我们先卸载一下 yum -y remove php* 由于linux的yum源不存在php7.x，所以我们要更改yum源 rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-releas