centos7上nginx+PHP7.2的安装及配置

centos7上nginx+PHP7.2的安装和一些配置（php和nginx）,以及centos的yum踩坑记录

修改yum源

国内使用centos默认的yum下载源非常慢，将其换为国内的阿里源-部署测试

安装wget
```
sudo yum install wget
```

备份原始的更新源

cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

下载并设置更新源为阿里源

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

清理yum缓存
```
yum clean all
```
创建yum缓存
```
yum makecache
```

问题记录

在安装过程中会可能因本机dns解析遇到以下问题

sources.list

解决方案

在/etc/resolv.conf中增加nameserver 8.8.8.8
重新执行 yum makecache

安装nginx

添加nginx源

rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

安装nginx
```
yum install nginx
```
启动nginx
```
systemctl start nginx
```
访问ip(本地127.0.0.1)，查看是否成功

ok！

安装PHP

添加PHP源

yum install epel-release
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

安装php 和 php-fpm
```
yum install php72w php72w-fpm
```

nginx配置

nginx的配置文件位于/etc/nginx/conf.d下

修改默认配置文件default.conf内容为

server {
    listen       80;
    server_name  localhost;

    location / {
        root   /usr/share/nginx/html;#项目根目录
        index  index.html index.htm index.php;
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    location ~ \.php$ {
        root           html;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  /usr/share/nginx/html$fastcgi_script_name;#根据项目根目录修改
        include        fastcgi_params;
    }

}

重启nginx
```
systemctl restart nginx
```
启动php-fpm
```
service start php-fpm
```
在nginx解析目录下添加php文件test.php内容如下
```
<?php
    echo phpinfo();
?>
```
访问ip(本地127.0.0.1)/test.php 页面如下

大功告成！！！