From:             francois dot dambrine at isen-lille dot fr
Operating system: Windows
PHP version:      5.5.0alpha2
Package:          Arrays related
Bug Type:         Bug
Bug description:udiff doesn't compare properly inside arrays

Description:
------------
This bug was introduced to me by a stackoverflow post 
http://stackoverflow.com/questions/13815287/union-two-associative-array-
php/13815578#13815578 I tested the behaviour with php 5.5 Alpha 2 and the
"bug" is 
still there.

As of the documentation, it is said that array_diff uses an "internal
function" to 
compare two elements.

As equality is the only thing that matters for array_diff I thought this
internal 
function was something that "==" behind.

But even if two arrays are equal (same members) array_diff does not take it
in 
account.

I mark it as a bug but it can only be a documentation problem.

Test script:
---------------
<?php 
$A = Array(
    array(
            'lable' =>"label0",
            'id_poste'=>1,
            'id_part'=>11
    ),
    array(
            'lable' =>"label1",
            'id_poste'=>2,
            'id_part'=>12
            ),
    array(
            'lable' =>"label2",
            'id_poste'=>3,
            'id_part'=>13
    ),
    array(
            'lable' =>"label3",
            'id_poste'=>4,
            'id_part'=>14
            )
);

$B = Array(
    array(
            'lable' =>"label0",
            'id_poste'=>1,
            'id_part'=>11
    ),
    array(
            'lable' =>"label1_X",
            'id_poste'=>2,
            'id_part'=>12
            ),
    array(
            'lable' =>"label2",
            'id_poste'=>3,
            'id_part'=>13
    ),
    array(
            'lable' =>"label3_X",
            'id_poste'=>4,
            'id_part'=>14
            )
);

var_dump(array_diff_assoc($B,$A));

Expected result:
----------------
Array(2){
    [0]=>array(3){
            ["lable"] =>"label1_X",
            ["id_poste"]=>2,
            ["id_part"]=>12
            },
    [1]=>array(3){
            ["lable"] =>"label3_X",
            ["id_poste"]=>4,
            ["id_part"]=>14
            }
}


Actual result:
--------------
array(0){
}

-- 
Edit bug report at https://bugs.php.net/bug.php?id=63833&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=63833&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=63833&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=63833&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63833&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63833&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63833&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63833&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63833&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63833&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63833&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=63833&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=63833&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63833&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63833&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63833&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63833&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63833&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63833&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63833&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63833&r=mysqlcfg

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