这里介绍CentOS7.4上安装php7.1版本
1. 安装epel-release
yum install epel-release
2. 安装webtatic第三方rpm包
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
3. 然后可以安装php7.1版本
yum install php71w
4. 安装mysql, redis, memcache等扩展
yum install php71w-pdo php71w-mysql
yum install php71w-pecl-memcache
yum install php71w-pecl-redis
yum install php71w-fpm
5. 安装nginx服务器
yum install nginx
6. nginx配置文件中增加php配置，在nginx.conf的server段中增加
location ~ \.php?.*$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
7. 启动nginx, php-fpm
systemctl enable nginx
systemctl enable php-fpm
systemctl start nginx
systemctl start php-fpm
8. 在/usr/share/nginx/html下新增phpinfo.php文件，内容为
<?php
phpinfo();
9. 用浏览器打开服务器上URL路径为/phpinfo.php的链接
可以查看服务器的php配置信息，php扩展信息
