参考地址：https://www.cnblogs.com/evai/p/5991525.html

下载新的CentOS-Base.repo 到/etc/yum.repos.d/

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

运行yum makecache生成缓存:

yum clean all
yum makecache
yum update

安装Nginx

1.由于yum源中没有我们想要的nginx，那么我们就需要创建一个“/etc/yum.repos.d/nginx.repo”的文件，其实就是新增一个yum源。

vim /etc/yum.repos.d/nginx.repo

把如下内容复制进去

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1

2.输入 yum list nginx 查看可安装的nginx包

[root@iZ2zeemzju81bld21k77icZ html]# yum list nginx
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.cloud.aliyuncs.com
 * extras: mirrors.cloud.aliyuncs.com
 * updates: mirrors.cloud.aliyuncs.com
 * webtatic: uk.repo.webtatic.com
Installed Packages
nginx.x86_64

如果执行命令是这样的显示效果，表示nginx的yum源配置成功

3.安装nginx

yum -y install nginx

4.启动nginx、查看启动状态

service nginx restart

service nginx status

安装PHP7

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

执行命令安装php7：

yum install php70w.x86_64 php70w-cli.x86_64 php70w-common.x86_64 php70w-gd.x86_64 php70w-ldap.x86_64 php70w-mbstring.x86_64 php70w-mcrypt.x86_64 php70w-mysql.x86_64 php70w-pdo.x86_64

安装php-fpm：

yum install php70w-fpm php70w-opcache

启动php-fpm：

systemctl start php-fpm

修改 /etc/nginx/conf.d/default.conf 文件：

server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/share/nginx/html;
        index  index.php index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    location ~ \.php$ {
        root           /usr/share/nginx/html;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}

nginx配置位置

/etc/nginx/nginx.conf

php配置位置

/etc/php.ini

######避免PHP信息暴露在http头中
expose_php = Off

######设置PHP的时区
date.timezone = PRC

######设置PHP脚本允许访问的目录（需要根据实际情况配置）
open_basedir = /usr/share/nginx/html

配置www.conf

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

user = nginx

######设置用户和用户组
user = nginx
group = nginx

######设置php的session目录（所属用户和用户组都是nginx）
php_value[session.save_handler] = files
php_value[session.save_path] = /var/lib/php/session

设置PHP监听
; listen = 127.0.0.1:9000   #####不建议使用

配置php-fpm.conf

/etc/php-fpm.conf

######引入www.conf文件中的配置
include=/etc/php-fpm.d/*.conf

4.配置文件所在地址

php.ini             /etc/php.ini
php加载ini文件       /etc/php.d/*.ini
php-fpm.conf        /etc/php-fpm.conf    
php-fpm.pid         /var/run/php-fpm/php-fpm.pid
php-fpm启动          php-fpm