（1）下载和安装PHP

$ sudo yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
$ yum --disablerepo="*" --enablerepo="remi-safe" list php[7-9][0-9].x86_64
$ sudo yum-config-manager --enable remi-php74

(2)连接Nginx 和 MySQL

$ sudo yum install php php-mysqlnd php-fpm

(3)检查PHP版本

$ php --version

(4)编辑PHP设置信息

$ vi /etc/php-fpm.d/www.conf

…
; RPM: apache user chosen to provide access to the same directories as httpd
user = nginx
; RPM: Keep a group allowed to write in log dir.
group = nginx
…

listen = /var/run/php-fpm/php-fpm.sock;

listen.owner = nginx
listen.group = nginx
listen.mode = 0660

(5) 重启

sudo systemctl start php-fpm

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参考：

1. installing-php