PHP include file. Showing error file not found

Question

I am using include function and it is giving errors. That is file not found. In the root directory I have - index.php and config.php

index.php includes config.php and has some other data.

config.php has database details and includes function/function.php

There is a folder user and it has a file calculate.php in calculate.php I have included AJAX functionality and a file is loaded in it on AJAX call. File is cal2.php and it is located in user folder. Now this, cal2.php has a include function for config.php like:

include "../config.php";

When this cal2.php is loaded from calculate.php

function/function.php file is not loaded. It shows file not found for function/function.php

So, file structure is:

root
/index.php
/config.php
/user/calculate.php
/user/cal2.php
/function/function.php

How to proceed and not have function.php include error for cal2.php

how are you loading function/function.php, in cal2.php? please post that code. — Shamim Hafiz - MSFT
– Shamim Hafiz - MSFT, Commented Dec 19, 2010 at 9:12
2 rules to follow. 1. Always post actual code. 2. Always post exact and complete error message. — Your Common Sense
– Your Common Sense, Commented Dec 19, 2010 at 9:29
As for your problem - it's easy. Just use existing path. there is no /user/function/ folder in your system. — Your Common Sense
– Your Common Sense, Commented Dec 19, 2010 at 9:33
Actually, it isn't that easy. Following the instructions the OP has given for creating the filesystem to the letter and using 100% relative includes exactly as described does not cause a problem to occur. It works 100% a-ok without changing a single thing. — Shabbyrobe
– Shabbyrobe, Commented Dec 19, 2010 at 11:24
@Shabbyrobe the path can be relative or absolute, but first of all it should be correct, pointing to the existing file. So, the OP have to determine that path first. A static one. And only then start building it dynamically — Your Common Sense
– Your Common Sense, Commented Dec 19, 2010 at 13:50

Mm-Art-In · Accepted Answer · 2022-05-30 17:53:36Z

7

You should change config.php to use an absolute path to functions.php. If you have PHP 5.3 or greater, do it like this:

include __DIR__.'/functions/functions.php';

If you are still using PHP 5.2 (or, god forbid, something earlier), you can do it this way:

$dir = dirname(__FILE__);
include $dir.'/functions/functions.php';

The __FILE__ magic constant always contains the value of the current PHP file name, so the dirname(__FILE__) call will give you the full filesystem path of the current script.

edited May 30, 2022 at 17:53

Mm-Art-In

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answered Dec 19, 2010 at 9:10

Shabbyrobe

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3 Comments

Your Common Sense Over a year ago

it will help include functions into config, but won't help include config into everything else. Don't use relative paths. use absolute ones.

Shabbyrobe Over a year ago

__DIR__ and dirname(__FILE__) are absolute paths

Your Common Sense Over a year ago

It's still relative, silly. formally absolute, but it's built from the relative position from the current file. move that file somewhere else and your relative path would fail. That's why an absolute path should be always used, based on some constant.

Rostyslav Dzinko · Accepted Answer · 2012-08-17 13:07:50Z

2

Use absolute path to include file:

$_SERVER['DOCUMENT_ROOT'].'/function/function.php'

edited Aug 17, 2012 at 13:07

Rostyslav Dzinko

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answered Dec 19, 2010 at 9:12

Pradeep Singh

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3 Comments

Shabbyrobe Over a year ago

Using __DIR__ or dirname(__FILE__) is better as it is not dependent on the server environment in order to work.

Your Common Sense Over a year ago

@Shabbyrobe it isn't better. It won't help at all

Chiwda Over a year ago

This doesn't work when executing the php script from a command line (for example from cron).

Community · Accepted Answer · 2017-05-23 12:09:55Z

-1

All problems here

/user/cal2.php
/function/function.php

you need to include such a way:

include('../config.php');

BUT I had this problem to, and I propose you to include files in the header of each page. Config you must inckude in the header of each page.

Read this, think it helps:

problems with global variables

edited May 23, 2017 at 12:09

CommunityBot

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answered Dec 19, 2010 at 9:23

yozhik

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