CentOS 下使用yum安装 PHP 7

首先执行命令

rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

可能会报错

error: Failed dependencies:
epel-release >= 7 is needed by webtatic-release-7-3.noarch

根据提示需要先安装epel-release。

1.安装epel-release

通过命令：

rpm -ivh http://dl.fedoraproject.org/pub/epel/7/aarch64/Packages/e/epel-release-7-11.noarch.rpm

此时如果你是centos6.X的系统可能会报confict冲突的错误，
解决办法是可以先卸载掉旧的

yum -y remove epel-release

2、再次重新安装即可

rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

3、开始安装php70w

yum -y install php70w

如果之前有安装其他版本的php，请先执行卸载