视频地址：
https://www.bilibili.com/video/av55251610?p=65
安装nginx
http://nginx.org
点击 download
vim /etc/yum.repos.d/nginx.repo
写入下面的代码 > 保存退出
[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0
enabled=1yum install nginx
nginx -v
systemctl start nginx
systemctl enable nginx安装php7.2
卸载不干净的环境：
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 -y install php72w php72w-cli php72w-common php72w-devel php72w-fpm php72w-gd php72w-mbstring php72w-opcache php72w-mysqlnd php72w-pdo php72w-xml php72w-xmlrpc php72w-pecl-imagick
systemctl start php-fpm
安装完成,查看php版本
php -v
安装 mysql5.7
yum list|grep mysql
