CentOS7yum How to install PHP7.2

1. If it has been installed before, let's uninstall it first

yum -y remove php*

2. Since php7.x does not exist for linux's yum source, we need to change yum source

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm 
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm 

3. yum Install php72w and various extensions, just choose what you need

yum -y install php72w php72w-cli php72w-common php72w-devel php72w-embedded php72w-fpm php72w-gd php72w-mbstring php72w-mysqlnd php72w-opcache php72w-pdo php72w-xml