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Bug #52540 Error on update array's field through __set magic method
Submitted: 2010-08-05 09:43 UTC Modified: 2010-08-05 11:02 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: trong at ngs dot ru Assigned:
Status: Not a bug Package: Class/Object related
PHP Version: 5.3.3 OS: Windows XP
Private report: No CVE-ID: None
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 [2010-08-05 09:43 UTC] trong at ngs dot ru
Description:
------------
If I use __set magic method for arrays and try to update some field of array I see 
the old value. But, if I use the same scheme for ArrayObject I'll get the right 
result.

Test script:
---------------
<?
class t
{
	private $data = array();

	public function __get($name) {
		return $this->data[$name];
	}
	
	public function __set($name, $value) {
		$this->data[$name] = $value;
	}
}

// define test array
$array = array( 'view' => array('x' => 1, 'y' => 1) );

$t = new t();
$t->mas = $array;

// update field of array
$t->mas['view']['x'] = 1111;
echo $t->mas['view']['x'];

echo '<br>';

$t->mas2 = new ArrayObject($array);
$t->mas2['view']['x'] = 1111;
echo $t->mas2['view']['x'];

?>

Expected result:
----------------
1111
<br>
1111

Actual result:
--------------
1
<br>
1111

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 [2010-08-05 11:02 UTC] johannes@php.net
-Status: Open +Status: Bogus
 [2010-08-05 11:02 UTC] johannes@php.net
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

When using the array as storage the __get() method will return a copy of the array. When using ArrayObject it will return a handle to the object. So with an array you're working on a copy, with objects on the same object.

For objet handles check http://www.php.net/manual/en/language.oop5.references.php
 
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