[PHP-BUG] Bug #51591 [NEW]: No warnings reported when invalidly adding automatically indexed array element

From:             
Operating system: Ubuntu 10.04 beta 2
PHP version:      5.3.2
Package:          Unknown/Other Function
Bug Type:         Bug
Bug description:No warnings reported when invalidly adding automatically indexed array element

Description:
------------
When an object with a __set() method has its non-existent array containing
variable set by empty bracket syntax, it just creates a new object variable
for the array, as if __set() weren't even there.

Test script:
---------------
<?php
class Foo {
    public $_vars = array();

    public function __set($var, $value) {
        $this->_vars[$var] = $value;
    }
}

$foo = new Foo;
$foo->bar[] = 'value';
var_dump($foo);
?>

Expected result:
----------------
__set() method called
object(Foo)#1 (1) {
  ["_vars"]=>
  array(1) {
    ["bar"]=>
    array(1) {
      [0]=>
      string(5) "value"
    }
  }
}

OR

<br />
<b>Fatal error</b>:  Cannot use [] for reading in
<b>/home/amcsi/htdocs/lol.php</b> on line <b>11</b><br />



Actual result:
--------------
object(Foo)#1 (2) {
  ["_vars"]=>
  array(0) {
  }
  ["bar"]=>
  array(1) {
    [0]=>
    string(5) "value"
  }
}


-- 
Edit bug report at http://bugs.php.net/bug.php?id=51591&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=51591&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=51591&r=trysnapshot53
Try a snapshot (PHP 6.0):            http://bugs.php.net/fix.php?id=51591&r=trysnapshot60
Fixed in SVN:                        http://bugs.php.net/fix.php?id=51591&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51591&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=51591&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=51591&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=51591&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=51591&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=51591&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=51591&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=51591&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=51591&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=51591&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=51591&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=51591&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=51591&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=51591&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=51591&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=51591&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=51591&r=mysqlcfg