php include_once not working

Question

What would be the reasons of a non working include_once?

Here's my folder hierarchy:

/Php/Controls/GridView/GridView.php
/Php/Controls/Form/Form.php

In "Form.php":

include_once '../GridView/GridView.php';

I'm getting this error:

Warning: include_once(../GridView/GridView.php) [function.include-once]: failed to open stream: No such file or directory in ...Form.php on line 4

Warning: include_once() [function.include]: Failed opening '../GridView/GridView.php' for inclusion (include_path='.;C:\php\pear') in ...Form.php on line 4

Please tell me if you want more information.

Solution 1

In Form.php use

include_once dirname(__FILE__) . '/../GridView/GridView.php';

This creates an absolute path, but relative to the file, where its called from.

Solution 2

It can't find the file.

You should use a full path, like /Php/Controls/GridView/GridView.php instead of a relative one.

Solution 3

Try this:

include_once './php/Controls/GridView/GridView.php';

Solution 4

Hope I'm not too late on this one but I thought this might be what you're looking for:

include_once realpath(dirname(__FILE__)."/../GridView/GridView.php");

Using realpath() allows you to include files even from outside your server document root directory.

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Comments

[KingCrunch]

The include path is only used, if its a "real" relative path (does not start with / or .) , but with . or .. it always creates the pathes from the current workdir (see @svens comment)

[Willem Van Onsem]

A problem with an absolute path is that when one decides to move/copy the website, many things will get broken...