php includes from different directory

I'm working on my site...now, I can link content from a sub directory to a "above" directory, but how can I link to a page in a subdirectory that calls to content from the above directory?

Hope that wasn't too confusing.

Thanks for any help.

 

It's always best to link to the file by using the full path.

The best scenario is to create an "includes" directory, then set the include path to a variable and reference that in all your files. If you use the ini path variable, it will search the include directories for the file all the time.

example:

$include_path = "/usr/local/apache/htdocs/includes/"
require_once($include_path . "header.php");

PHP:

If you really need a relative path, you can always do something like:

require_once("../header.php");

PHP:

 

Yeah, you can use ../ as many times as you want to go back a directory. For example, if your script is located in the directory main/php/blah/ and you want to include a file called "dog.php" located in the directory /main/, you would do this:

include "../../dog.php";

PHP:

Hope I helped

 

But dont ever accept "../" in any user input. If you do, people could view all sorts of files on your computer!