#38478 [Asn->Bgs]: reset() does not work as expected on Iterator implementations
| From: | helly@php.net | Date: | Tue, 31 Oct 2006 23:32:18 +0000 |
| Subject: | #38478 [Asn->Bgs]: reset() does not work as expected on Iterator implementations | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-104240@lists.php.net to get a copy of this message | ||
ID: 38478
Updated by: helly@php.net
Reported By: toby@php.net
-Status: Assigned
+Status: Bogus
Bug Type: SPL related
-Operating System: Gentoo
+Operating System: *
-PHP Version: 5.2.0RC1
+PHP Version: 5.2.0
Assigned To: helly
New Comment:
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
In PHP objects are also arrays of their properties and reset and
friends only work on real arrays. Thus the result is correct.
Previous Comments:
------------------------------------------------------------------------
[2006-08-17 08:20:07] toby@php.net
Description:
------------
The Iterator interface (SPL) defines a method rewind(). When
implementing e.g. ArrayIterator to allow array access to an object, one
would expect that reset($object) would use the rewind method. This does
not happen, but the first property is returned.
Reproduce code:
---------------
<?php
class testArray implements Iterator
{
protected $prop = array(
1 => 'one',
2 => 'two',
3 => 'three',
);
public function rewind()
{
return reset( $this->prop );
}
public function key()
{
return key( $this->prop );
}
public function current()
{
return current( $this->prop );
}
public function next()
{
return next( $this->prop );
}
public function valid()
{
return ( current( $this->prop ) !== false );
}
}
$array = new testArray();
Expected result:
----------------
// Expected: string(3) "one"
var_dump( $array->rewind() );
// Expected: string(3) "one"
var_dump( reset( $array ) );
Actual result:
--------------
// As expected: string(3) "one"
var_dump( $array->rewind() );
// Expected: string(3) "one"
var_dump( reset( $array ) );
/* Got:
array(3) {
[1]=>
string(3) "one"
[2]=>
string(3) "two"
[3]=>
string(5) "three"
}
*/
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=38478&edit=1