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Fix lifetime issue with getAttributeNodeNS() #11422

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Fix lifetime issue with getAttributeNodeNS() #11422

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20 changes: 4 additions & 16 deletions ext/dom/element.c
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Expand Up @@ -787,7 +787,7 @@ Since: DOM Level 2
PHP_METHOD(DOMElement, getAttributeNodeNS)
{
zval *id;
xmlNodePtr elemp, fakeAttrp;
xmlNodePtr elemp;
xmlAttrPtr attrp;
dom_object *intern;
size_t uri_len, name_len;
Expand All @@ -808,21 +808,9 @@ PHP_METHOD(DOMElement, getAttributeNodeNS)
xmlNsPtr nsptr;
nsptr = dom_get_nsdecl(elemp, (xmlChar *)name);
if (nsptr != NULL) {
xmlNsPtr curns;
curns = xmlNewNs(NULL, nsptr->href, NULL);
if (nsptr->prefix) {
curns->prefix = xmlStrdup((xmlChar *) nsptr->prefix);
}
if (nsptr->prefix) {
fakeAttrp = xmlNewDocNode(elemp->doc, NULL, (xmlChar *) nsptr->prefix, nsptr->href);
} else {
fakeAttrp = xmlNewDocNode(elemp->doc, NULL, (xmlChar *)"xmlns", nsptr->href);
}
fakeAttrp->type = XML_NAMESPACE_DECL;
fakeAttrp->parent = elemp;
fakeAttrp->ns = curns;

DOM_RET_OBJ(fakeAttrp, &ret, intern);
/* Keep parent alive, because we're a fake child. */
GC_ADDREF(&intern->std);
(void) php_dom_create_fake_namespace_decl(elemp, nsptr, return_value, intern);
} else {
RETURN_NULL();
}
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20 changes: 20 additions & 0 deletions ext/dom/tests/bug_lifetime_parentNode_getAttributeNodeNS.phpt
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@@ -0,0 +1,20 @@
--TEST--
Lifetime issue with parentNode on getAttributeNodeNS()
--EXTENSIONS--
dom
--FILE--
<?php
$xmlString = '<?xml version="1.0" encoding="utf-8" ?>
<root xmlns="http://ns" xmlns:ns2="http://ns2">
<ns2:child />
</root>';

$xml=new DOMDocument();
$xml->loadXML($xmlString);
$ns2 = $xml->documentElement->getAttributeNodeNS("http://www.w3.org/2000/xmlns/", "ns2");
$ns2->parentNode->remove();
var_dump($ns2->parentNode->localName);

?>
--EXPECT--
string(4) "root"