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Bug #48487 fetch_object calls __set before constructor
Submitted: 2009-06-06 20:33 UTC Modified: 2010-01-04 10:31 UTC
Votes:3
Avg. Score:4.3 ± 0.9
Reproduced:3 of 3 (100.0%)
Same Version:2 (66.7%)
Same OS:1 (33.3%)
From: joel at purerave dot com Assigned:
Status: Closed Package: MySQLi related
PHP Version: 5.2.9 OS: win2k sp4
Private report: No CVE-ID: None
View Developer Edit
 [2009-06-06 20:33 UTC] joel at purerave dot com 
Description:
------------
mysqli_fetch_object with custom class calls __set() before constructor.

Reproduce code:
---------------
<?php
$mysqli = new mysqli("localhost", "root", "root", "test");
class myData {
	function __construct($param) {
		echo 'creating'.PHP_EOL;
	}
	function __set($name, $value) {
		$this->{$name} = $value;
		echo 'setting'.PHP_EOL;
	}
}

$sql = "SELECT id FROM test LIMIT 1";
$result = $mysqli->query($sql);
while ($obj = $result->fetch_object('myData', array('data'))) {
}

Expected result:
----------------
creating
setting


Actual result:
--------------
setting
creating

Patches

Pull Requests

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 [2009-08-25 17:14 UTC] joel at purerave dot com 
No response yet?
 [2009-11-06 16:29 UTC] caferrari at gmail dot com 
Help!.. i am having this issue with php 5.2.10 on Ubuntu 9.10 and Debian 5... and its evil!... my solution:

class Exemplo {
	public function __construct($id=0, $nome='', $sigla=''){
		if (isset($this->id)) return; //Ugly solution!!! help!

		$this->id	= $id;
		$this->nome 	= $nome;
		$this->sigla 	= $sigla;
	}
}
 [2010-01-04 10:31 UTC] uw@php.net 
This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

Fixed with http://news.php.net/php.cvs/61460
 [2010-05-12 09:51 UTC] vadimx at gmail dot com 
In mysql_fetch_object the same bug.
 [2014-04-28 14:51 UTC] ircmaxell@php.net 
Note that this is NOT fixed in any release. The change was reverted.

Just leaving this note here so that anyone who stumbles on it in the future will not go chasing their tails.
 [2015-10-01 13:33 UTC] grell at werk4 dot net 
ircmaxwell@php.net:
Are you sure that this has never been released?
In PHP 5.2.17 I see this exact behaviour.

Testcase:
<?php
class TestClass
{
	public function __construct() {
		echo 'construct'."\n";
	}
	
	public function __set($key, $value) {
		echo 'set "'.$key.'" to "'.$value . '"' ."\n";
	}

}
$db = new mysqli();
$db->query('SELECT "PHP" as name')->fetch_object('TestClass');

Expected output (as documented):
set "name" to "PHP"
construct

Actual output:
construct
set "name" to "PHP"
 
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