#20681 [Opn]: array_search(:object, :array) fails
| From: | dparks at verinform dot com | Date: | Wed, 27 Nov 2002 20:31:46 +0000 |
| Subject: | #20681 [Opn]: array_search(:object, :array) fails | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-25994@lists.php.net to get a copy of this message | ||
ID: 20681
User updated by: dparks@verinform.com
Reported By: dparks@verinform.com
Status: Open
Bug Type: Feature/Change Request
Operating System: Win 2K SP3
PHP Version: 4.2.3
New Comment:
I don't understand what this has to do with how equality is handled by
the Zend engine. The documentation states that array_search can accept
"mixed" data in the first parameter, which would seem to imply that
objects should work. They don't. Therefore, array_search() is broken.
What am I missing?
Also, I have seen no mention in the PHP manual about how equality is
handled by the Zend engine. Should I file a documentation bug?
Thanks,
Daniel
Previous Comments:
------------------------------------------------------------------------
[2002-11-27 14:08:01] moriyoshi@php.net
As it's been said enough that identity or equalness of two objects is
somewhat obscure in ZendEngine1, I don't see any reason to implement
this feature unless ZendEngine2 becomes ready for release versions.
So I'm reclassifying this report as a feature request in this point of
view.
------------------------------------------------------------------------
[2002-11-27 11:48:56] dparks@verinform.com
<?php
class A {
function A () {
}
}
class B {
function B () {
}
}
$g_b = new B ();
$g_array = array (
array ( new A () ),
array ( 'test' ),
array ( $g_b ) );
$g_key = array_search(array ( new A () ), $g_array);
var_dump($g_key);
$g_key = array_search(array ( $g_b ), $g_array);
var_dump($g_key);
$g_key = array_search(array ( 'test' ), $g_array);
var_dump($g_key);
?>
Seems to work as I exect it to:
int(0)
int(2)
int(1)
Also, the original example still produces warnings and doesn't find the
elements if you change the array_search() calls to in_array().
------------------------------------------------------------------------
[2002-11-27 11:41:45] dparks@verinform.com
array_search() does not seem to work when the needle is an object.
Sample code:
<?php
class A {
function A () {
}
}
class B {
function B () {
}
}
$g_b = new B ();
$g_array = array ( new A (), 'test', $g_b );
$g_key = array_search(new A (), $g_array);
var_dump($g_key);
$g_key = array_search($g_b, $g_array);
var_dump($g_key);
$g_key = array_search('test', $g_array);
var_dump($g_key);
?>
Output:
<br />
<b>Warning</b>: Wrong datatype for first argument in call to
array_search in <b>C:\dparks\Documents\html\tmp.php</b> on line
<b>17</b><br />
bool(false)
<br />
<b>Warning</b>: Wrong datatype for first argument in call to
array_search in <b>C:\dparks\Documents\html\tmp.php</b> on line
<b>20</b><br />
bool(false)
int(1)
Environment:
This is PHP 4.2.3 (binary from Zend or PHP.net) running on Apache
2.0.40 on Win 2K SP3.
Please email me if you would like me to run more tests, or try another
build (it may be awhile before I can try another build though --
someone else here had trouble with 4.3rc1 and I am behind schedule).
Thanks,
Daniel
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=20681&edit=1