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PHP: Set the path relative to the file

Have you ever attempted to include a file for use in your document and it's not working? It's saying that it cannot find the file.

There's a simple solution to this issue.

chdir(dirname(__FILE__));

 For PHP 5.3+
chdir(__DIR__);

Place it right above the require_once() or include() statement to set the path of the file relative to the document.

For example, lets say your folder structure is as follows:

classes/
  config/
    config.php
  database/
    database.php

You're currently in database.php and want to include config.php

You write your require_once("../config/config.php"); but it doesn't work. You get a Fatal Error.

Place the chdir(dirname(__FILE__)) right above the require statement to set the relative path to database.php

chdir(dirname(__FILE__));
require_once("../config/config.php");

 For PHP 5.3+
chdir(__DIR__);
require_once("../config/config.php");

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