安装源
yum install epel-release
yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
安装管理工具
yum install yum-utils
安装
yum install php74-php-gd php74-php-pdo php74-php-mbstring php74-php-cli php74-php-fpm php74-php-mysqlnd
启动
service php74-php-fpm start