Bug #67459 [NEW]: DOMDocument memory hanldling

From: goetas at gmail dot com Operating system: ubuntu PHP version: 5.5.13 Package: DOM XML related Bug Type: Bug Bug description:DOMDocument memory hanldling Description: ------------ Strange object allocation issue, maybe related to PHP/LIBXML memory handling. I've supposed that PHP releases the object associated to $root when I unset it (even if this object can be reached through $dom->documentElement). Later, when I create the $ele element, it takes the same memory position of $root. LIBXML version 2.7.8 Test script: --------------- $dom = new \DOMDocument('1.0', 'UTF-8'); $root = $dom->createElement('root'); $dom->appendChild($root); $h1 = spl_object_hash($root); $h2 = spl_object_hash($dom->documentElement); var_dump($root === $dom->documentElement); // true, OK var_dump($h1 === $h2); // true, OK unset($root); $ele = $dom->createElement('ele'); $h3 = spl_object_hash($ele); $h4 = spl_object_hash($dom->documentElement); var_dump($h1 === $h3); // expected to be false, but actually true var_dump($h1 === $h4); // expected to be true, but actually false Expected result: ---------------- bool(true) bool(true) bool(false) bool(true) Actual result: -------------- bool(true) bool(true) bool(true) bool(false) -- Edit bug report at https://bugs.php.net/bug.php?id=67459&edit=1 --