#10658 [Sus->Bgs]: array_diff does not work with classes
| From: | sniper@php.net | Date: | Sat, 24 Aug 2002 01:22:38 +0000 |
| Subject: | #10658 [Sus->Bgs]: array_diff does not work with classes | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-17713@lists.php.net to get a copy of this message | ||
ID: 10658
Updated by: sniper@php.net
Reported By: mihai.negrea@spidernet.co.ro
-Status: Suspended
+Status: Bogus
Bug Type: Arrays related
Operating System: Linux
PHP Version: 4.0.5
New Comment:
expected behaviour, not bug -> bogus.
Previous Comments:
------------------------------------------------------------------------
[2001-09-14 19:32:39] jeroen@php.net
The problem is that array_diff compares the string-represantation of
the arguments.
And in the case of objects, it is always "Object", and thus considered
equal.
This is currently expected behaviour, though it'd be be better if it
weren't... string-comparasation by array_diff & co is not
satisfactionary in case of objects. (nor arrays)
Suspended.
------------------------------------------------------------------------
[2001-05-04 03:36:46] mihai.negrea@spidernet.co.ro
Consider the following script:
<?
class test
{
var $x;
var $y;
function test ()
{
$this->x = 0;
$this->y = 0;
}
function set ($x, $y)
{
$this->x = $x;
$this->y = $y;
}
}
$mumu = array();
$gaga = array();
for($i=0;$i<3;$i++)
{
$test = new test ();
$test->set($i, $i);
$mumu["xx".$i] = $test;
}
for($i=0;$i<5;$i++)
{
$test = new test ();
$test->set($i, $i);
$gaga["xx".$i] = $test;
}
$fff = array_diff($mumu, $gaga);
$ggg = array_diff($gaga, $mumu);
echo "<pre>";
print_r($fff);
echo "</pre>";
echo "<pre>";
print_r($ggg);
echo "</pre>";
?>
the following is the output from a server with php
4.0.4pl1:
Array
(
)
Array
(
[xx3] => test Object
(
[x] => 3
[y] => 3
)
[xx4] => test Object
(
[x] => 4
[y] => 4
)
)
and the following is the ouput with php 4.0.5:
Array
(
)
Array
(
)
the php.ini is the same on both servers.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=10658&edit=1