Merge branch 'PHP-8.3' into PHP-8.4

* PHP-8.3:
  Fix xinclude destruction of live attributes

Author: nielsdos

NEWS

@@ -37,6 +37,7 @@ PHP                                                                        NEWS
   . Fix weird unpack behaviour in DOM. (nielsdos)
   . Fixed bug GH-18090 (DOM: Svg attributes and tag names are being lowercased).
     (nielsdos)
+  . Fix xinclude destruction of live attributes. (nielsdos)
 
 - Fuzzer:
   . Fixed bug GH-18081 (Memory leaks in error paths of fuzzer SAPI).

ext/dom/document.c

@@ -1669,14 +1669,28 @@ PHP_METHOD(Dom_XMLDocument, saveXml)
 }
 /* }}} end dom_document_savexml */
 
+static void dom_xinclude_strip_references_for_attributes(xmlNodePtr basep)
+{
+	for (xmlAttrPtr prop = basep->properties; prop; prop = prop->next) {
+		php_libxml_node_free_resource((xmlNodePtr) prop);
+		for (xmlNodePtr child = prop->children; child; child = child->next) {
+			php_libxml_node_free_resource(child);
+		}
+	}
+}
+
 static void dom_xinclude_strip_references(xmlNodePtr basep)
 {
 	php_libxml_node_free_resource(basep);
+	dom_xinclude_strip_references_for_attributes(basep);
 
 	xmlNodePtr current = basep->children;
 
 	while (current) {
 		php_libxml_node_free_resource(current);
+		if (current->type == XML_ELEMENT_NODE) {
+			dom_xinclude_strip_references_for_attributes(current);
+		}
 		current = php_dom_next_in_tree_order(current, basep);
 	}
 }

ext/dom/tests/gh17847.phpt

@@ -13,7 +13,7 @@ $doc->loadXML(<<<XML
     </xi:include>
     <xi:test xmlns:xi="http://www.w3.org/2001/XInclude">
       <xi:include href="thisisnonexistent">
-        <p>garbage</p>
+        <p attr="foo" attr2="bar">garbage</p>
       </xi:include>
     </xi:test>
 </root>
@@ -22,20 +22,31 @@ XML);
 $xpath = new DOMXPath($doc);
 
 $garbage = [];
-foreach ($xpath->query('//p') as $entry)
+foreach ($xpath->query('//p') as $entry) {
     $garbage[] = $entry;
+    foreach ($entry->attributes as $attr) {
+        $garbage[] = $attr;
+        foreach ($attr->childNodes as $child) {
+            $garbage[] = $child;
+        }
+    }
+}
 
 @$doc->xinclude();
 
 foreach ($garbage as $node) {
-  try {
-    var_dump($node->localName);
-  } catch (DOMException $e) {
-    echo $e->getMessage(), "\n";
-  }
+    try {
+        var_dump($node->localName);
+    } catch (DOMException $e) {
+        echo $e->getMessage(), "\n";
+    }
 }
 ?>
 --EXPECT--
 Invalid State Error
 Invalid State Error
 Invalid State Error
+Invalid State Error
+Invalid State Error
+Invalid State Error
+Invalid State Error