一、查看PHP版本php
php -v
二、删除旧phpmysql
yum remove php*
三、安装epelweb
sudo yum install epel-release
四、安装remisql
sudo yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
五、安装yum-utilsjson
sudo yum install yum-utils
六、Enable remi repophp7
sudo yum-config-manager --enable remi-php72 sudo yum update
七、安装php7.2svg
sudo yum install php72 sudo yum install php72-php-fpm php72-php-gd php72-php-json php72-php-mbstring php72-php-mysqlnd php72-php-xml php72-php-xmlrpc php72-php-opcache
八、安装完成，查看当前php版本php-fpm
php -v
经常使用php扩展
yum install php72w php72w-cli php72w-common php72w-devel php72w-embedded php72w-fpm php72w-gd php72w-mbstring php72w-mysqlnd php72w-opcache php72w-pdo php72w-xml php72w-ldap php72w-mcrypt.net