How do I include a file over 2 directories back?

Question

How do you include a file that is more than 2 directories back. I know you can use ../index.php to include a file that is 2 directories back, but how do you do

Answer 1

../../../includes/boot.inc.php

Each instance of ../ means up/back one directory.

Answer 2

Try This

this example is one directory back

require_once('../images/yourimg.png');

this example is two directory back

require_once('../../images/yourimg.png');

Answer 3

To include a file one directory back, use '../file'. For two directories back, use '../../file'. And so on.

Although, realistically you shouldn't be performing includes relative to the current directory. What if you wanted to move that file? All of the links would break. A way to ensure that you can still link to other files, while retaining those links if you move your file, is:

require_once($_SERVER['DOCUMENT_ROOT'] . 'directory/directory/file');

DOCUMENT_ROOT is a server variable that represents the base directory that your code is located within.

Answer 4

if you include the / at the start of the include, the include will be taken as the path from the root of the site.

if your site is http://www.example.com/game/forum/files/index.php you can add an include to /includes/boot.inc.php which would resolve to http://www.example.com/includes/boot.inc.php .

You have to be careful with .. traversal as some web servers have it disabled; it also causes problems when you want to move your site to a new machine/host and the structure is a little different.

Answer 5

following are ways to access your different directories:-

./ = Your current directory
../ = One directory lower
../../ = Two directories lower
../../../ = Three directories lower

Answer 6

. = current directory
.. = parent directory

So ../ gets you one directory back not two.

Chain ../ as many times as necessary to go up 2 or more levels.