require_once works without include path

Question

I have file 1.php having a require_once for 2.php (both of them are in different folders). The issue I am having is that 1.php seems to magically include 2.php since the path for 2.php is not in 1.php. Just to be sure, I even added a set_include_path('.') before the require_once '2.php', but it still works... Is there something obvious I am missing or is this plain weird??

Edit:

//-- file 1.php
//-- long list of requires...
set_include_path('.');
echo get_include_path();
require_once '2.php';

The above works fine while 1.php and 2.php are in different folders.

Please be more specific on the locations of all the files involved. — VolkerK, Aug 23 '10 at 09:49
@VolkerK - here we have only two files 1.php and 2.php and they are in two different locations.. @Kevin - added the code.. thanks for the comments.. — pinaki, Aug 23 '10 at 09:57
"different locations" like what? Like `/home/www/lala/1.php` and `/var/temp/2.php` ? — VolkerK, Aug 23 '10 at 09:59
different locations like /var/www/test/1.php and /var/www/test/abcd/2.php... can you explain how that is relevant?? — pinaki, Aug 23 '10 at 10:01
Only a prepended `..`? Can be anything, .. applies anywhere. Different paths with arbitrary parts? Needs some (specific) doing. — VolkerK, Aug 23 '10 at 10:28
...and you've accepted the answer where the actual paths would matter. Just nagging ;-) — VolkerK, Aug 23 '10 at 11:14

score 2 · Accepted Answer · answered Aug 23 '10 at 10:43

2

There is some include magic in PHP, i've met it before.
Something autoload related, I believe.
It always looks in the folder where file with running class resides

answered Aug 23 '10 at 10:43

Your Common Sense

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hmmm.. this looks interesting... where do i start looking for any autoload magic??? – pinaki Aug 23 '10 at 10:46
@pinaki dunno, I was looking into source code lol :) In some PHP OOP manual probably, because autoload is OOP feature – Your Common Sense Aug 23 '10 at 10:49

score 1 · Answer 2 · answered Aug 23 '10 at 09:50

1

Try echo get_include_path() after you set your empty include path, it may be set somewhere else (like in the web server config file).

answered Aug 23 '10 at 09:50

Andrei Serdeliuc ॐ

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there was a typo in the description... i have tried putting an echo get_include_path().. it lists the set path (.) in my case.. – pinaki Aug 23 '10 at 09:52

score 1 · Answer 3 · answered Aug 23 '10 at 10:04

1

Long shot but maybe one of the other included files changed the current working directory:

<?php
echo 'cwd at the beginning of 1.php: ', getcwd(), "\n";
//-- file 1.php
//-- long list of requires...
set_include_path('.');
echo 'include_path: ', get_include_path(), " \n";
echo 'cwd: ', getcwd(), "\n";
require_once '2.php';

answered Aug 23 '10 at 10:04

VolkerK

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`require` and `include` work with the current working dir when looking for files. So, if a script sets the cwd to the folder of 2.php (as VolkerK suggested), the seen behaviour would occur. Another option would be, that `1.php` gets included by a script living in the folder of `2.php`, so the cwd is there due to the initial invoke. – ZeissS Aug 23 '10 at 10:08
@ZeissS - i already did an echo getcwd() inside 2.php and that is not the case here... – pinaki Aug 23 '10 at 10:11

score 1 · Answer 4 · answered Aug 23 '10 at 10:16

1

For the sake of argument, if you put a 2.php in the same location as 1.php does the new file get included instead of the old one?

Can you tell use what the value of your open_basedir is?

answered Aug 23 '10 at 10:16

Basic

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if i put them in the same place, it works fine.. open_basedir value in "no value"... i tried changing from 2.php to pinaki/2.php in the require_once and it failed... at last some sanity :)... – pinaki Aug 23 '10 at 10:19

score 1 · Answer 5 · answered Aug 23 '10 at 10:41

1

Perhaps you have a file with the same name as file 2 in the path of file 1.

answered Aug 23 '10 at 10:41

Matt Ellen

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require_once works without include path

5 Answers5