关于nginx承载php时，页为为空白的问题

就是nginx的配置问题

server {
        listen 80;

        root /platform/web/public;
        index index.php index.html index.htm;

        server_name web.kyrin.com www.kyrin.com;

        location / {
                try_files $uri $uri/ /index.php?$query_string;
        }
        location ~ \.php$ {
                try_files $uri =404;

                fastcgi_split_path_info  ^(.+\.php)(/.+)$;
                fastcgi_index            index.php;
                fastcgi_pass             unix:/var/run/php/php7.2-fpm.sock;
                include                  fastcgi_params;
                fastcgi_param   PATH_INFO       $fastcgi_path_info;
                fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
        }
}

尤其注意如下代码行，必须要有：

 　　　　　　　　　fastcgi_param   PATH_INFO       $fastcgi_path_info;
                fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;