location /index.php{
    fastcgi_pass  unix:/tmp/php-cgi.sock;
    fastcgi_param SCRIPT_FILENAME /home/wwwroot/index.php;
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_split_path_info ^(.+\.php)(.*)$;
    fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
    include fcgi.conf;
}

如果有多个应用，如：后台应用，可以多加一段以上代码，并修改相应入口文件：

location /admin.php{
    fastcgi_pass  unix:/tmp/php-cgi.sock;
    fastcgi_param SCRIPT_FILENAME /home/wwwroot/admin.php;
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_split_path_info ^(.+\.php)(.*)$;
    fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
    include fcgi.conf;
}