PHP include inside an include (different directory)

Question

The structure for the current project I am working on is something like:

root/index.php
root/includes/php/first.php
root/includes/php/functions.php

So index.php includes first.php:

<?php include_once("includes/php/first.php"); ?>

Normally then my first.php would call functions like:

<?php include_once("includes/php/functions.php"); ?>

Assuming the relative would still be from the index page however when moving to a new server it didn't work. I tried making the relative path from first.php:

include_once("functions.php");

And this seems to work now.

Which would normally be the correct way to do this? I want to roll this project out so just about anyone would be able to install this.

nickf · Accepted Answer · 2009-12-11 14:41:18Z

12

includes are relative to the file doing the including. If you really want to make sure and avoid any ambiguity, you could do this:

include dirname(__FILE__) . "/functions.php";

answered Dec 11, 2009 at 14:41

nickf

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4 Comments

kilrizzy Over a year ago

Awesome thanks! Not sure why it worked before the other way but this solution will solve future issues

Atli Over a year ago

+1 - I was going to suggest using the $_SERVER['SCRIPT_FILENAME'] element to do the same, but this is much better.

Andrew Over a year ago

I tend to create a couple of definations for my PHP app's and store my root_path and web_path there for use throughout

Alex_Nabu Over a year ago

I heard that php didnt do preporcessing on file includes and are instead executed when that statment is reached.... but how can it be relative to the file doing the including and not be doing some preprocessing if that file is say included in another file thus changing the directory model?

Livshin · Accepted Answer · 2015-07-21 11:58:03Z

0

I always use:

include ($_SERVER['DOCUMENT_ROOT']."/include/php/functions.php");

This way you always know where you are (coming from the root) and your code can be copied from place to place.

answered Jul 21, 2015 at 11:58

Livshin

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