（如果不是root使用者要是用root許可權 所有的命令前加上 sudo）
centos7安裝php7.2

1、yum install epel-release [安裝所需的依賴]
2、yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm [安裝php72的源]
3、yum install yum-utils
4、yum-config-manager --enable remi-php72 [檢視php72的擴充套件]
5、yum update  [更新yum源]
6、sudo yum search php72 | more [檢視當前的yum中有哪些php擴充套件]
 

   sudo yum search php72 | egrep 'fpm|gd|mysql|memcache' [匹配檢視某種源的包名]
7、sudo yum install php72 [安裝php72]
8、yum install php72-php-fpm php72-php-gd php72-php-json php72-php-mbstring php72-php-mysqlnd php72-php-xml php72-php-xmlrpc php72-php-opcache  [安裝php的擴充套件]
9、php72  --version [檢視php的版本]
10、php72  -m [檢視php的擴充套件]
 

11、ps aux | grep php-fpm  [檢視php-fpm的啟動情況]
12、systemctl start php72-php-fpm.service [啟動php-fpm的服務  重啟:restart  停止:stop]
13、systemctl enable php72-php-fpm.service  [新增php為開啟啟動項]
14、systemctl status php72-php-fpm.service [檢視php-fpm的狀態]

配置nginx支援php-fpm
[yum 安裝nginx yum install -y nginx]

vi /etc/nginx/conf.d/default
 
.conf
server {
        listen 80;
        server_name 伺服器的ip地址 localhost;

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

        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;
        }
}

systemctl restart nginx
vi /usr/share/nginx/html/index.php

<?php
echo phpinfo();

:wq

訪問ip地址  出現phpinfo()的內容