Commit 33d243c2142 for php.net

commit 33d243c214253c3aa18618902fa86273d6938784
Author: David Carlier <devnexen@gmail.com>
Date:   Sun Jul 5 21:06:28 2026 +0100

    ext/dom: fix GH-22570 new test

diff --git a/ext/dom/tests/modern/xml/gh22570.phpt b/ext/dom/tests/modern/xml/gh22570.phpt
index af78acf00df..3d648aac5e4 100644
--- a/ext/dom/tests/modern/xml/gh22570.phpt
+++ b/ext/dom/tests/modern/xml/gh22570.phpt
@@ -15,13 +15,15 @@
 zend.max_allowed_stack_size=512K
 --FILE--
 <?php
-// Build via the DOM API, not the parser: libxml caps parse depth even with
-// LIBXML_PARSEHUGE on some platforms; the serializer recursion is the bug.
+// Build bottom-up so the insertion cycle-check stays O(1); top-down is O(n^2).
 $doc = Dom\XMLDocument::createEmpty();
-$node = $doc->appendChild($doc->createElement('root'));
+$node = $doc->createElement('a');
 for ($i = 0; $i < 100000; $i++) {
-    $node = $node->appendChild($doc->createElement('a'));
+    $parent = $doc->createElement('a');
+    $parent->appendChild($node);
+    $node = $parent;
 }
+$doc->appendChild($node);

 try {
     $doc->saveXml();