fastcgi $realpath_root

fixes #45

public/templates/conf/nginxconfig.io/php_fastcgi.conf.html

@@ -1,10 +1,14 @@
 try_files $uri =404;
 
-# fastcgi
+# default fastcgi_params
+include fastcgi_params;
+
+# fastcgi settings
 fastcgi_pass				{{ !isPHPBackup() ? ((data.php_server[0] === '/' ? 'unix:' : '') + data.php_server) : 'php' }};
 fastcgi_index				index.php;
 fastcgi_split_path_info		^(.+\.php)(/.+)$;
-fastcgi_param				SCRIPT_FILENAME $document_root$fastcgi_script_name;
+fastcgi_param				DOCUMENT_ROOT $realpath_root;
+fastcgi_param				SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
 fastcgi_param				PHP_ADMIN_VALUE open_basedir=$base/:/usr/lib/php/:/tmp/;
 fastcgi_intercept_errors	off;
 
@@ -12,6 +16,3 @@ fastcgi_buffer_size				128k;
 fastcgi_buffers					256 16k;
 fastcgi_busy_buffers_size		256k;
 fastcgi_temp_file_write_size	256k;
-
-# default fastcgi_params
-include fastcgi_params;