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Bug #68512 DOMDocument specific properties in child class not used.
Submitted: 2014-11-27 08:20 UTC Modified: 2014-12-28 19:11 UTC
From: arjen at react dot com Assigned:
Status: Open Package: DOM XML related
PHP Version: 5.6.3 OS: Linux
Private report: No CVE-ID: None
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From: arjen at react dot com
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 [2014-11-27 08:20 UTC] arjen at react dot com
Description:
------------
When extending DOMDocument, it's class properties cannot be overwritten/changed. DOMDocument's initial value are kept.

var_dump() however contains the actual new value, so behaviour is buggy at least.

See http://3v4l.org/6H88X

Test script:
---------------
<?php

class A extends DOMDocument 
{
    public $formatOutput = true;
}
$a = new A;

var_dump($a->formatOutput); // false
var_dump($a); // Has formatOutput => true

Expected result:
----------------
bool(true)
object(A)#1 (34) {
  ["formatOutput"]=>
  bool(true)
  <<cut>>
}

Actual result:
--------------
bool(false)
object(A)#1 (34) {
  ["formatOutput"]=>
  bool(true)
  <<cut>>
}

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 [2014-12-28 19:08 UTC] levim@php.net
I'm inclined to say the var_dump output is what is incorrect. I believe DOMDocument's properties are read-only by design and should remain that way.
 [2014-12-28 19:11 UTC] levim@php.net
Further examination of the manual shows that some of DomDocument's properties are explicitly read-only while others are not. I am not sure what the exact reason for this is. Assuming that none of the properties are actually writable, I propose changing the docs to list that they are all read-only properties.
 
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