1.nginx 通过 fastcgi 接口连接nginx

用户访问网站—>nginx(fastcgi_pass) --FastCGI–>(php-fpm – wrapper) php (php解析器) —> mysql(读取或写入)
2.下载php
yum remove php-mysql php php-fpm php-common -y
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
yum install -y php71w php71w-cli php71w-common php71w-devel php71w-embedded php71w-gd php71w-mcrypt php71w-mbstring php71w-pdo php71w-xml php71w-fpm php71w-mysqlnd php71w-opcache php71w-pecl-memcached php71w-pecl-redis php71w-pecl-mongodb
3.配置nginx配置文件
server {
listen 80;
server_name bbs.trrop.com;
##分割站点日志：
access_log /var/log/nginx/www_access.log main;
error_log /var/log/nginx/www_error.log error;
location / {
root /www;
index index.php index.html;

指定用户最大上传50M，413报错问题，php-fpm也要修改

client_max_body_size 50m;
#字符集
charset utf-8;
}
location ~ .php$ {
root /www;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$documentr​ootfastcgi_script_name;
fastcgi_pass 127.0.0.1:9000; //调用 fastcgi接口
include fastcgi_params; //变量定义的文件
}
}

ps：这个只是连接单台网站建设，如果想要实现nginx+php+nfs+mysql的话，需要建立对应的管理用户，统一用户。