1--TEST-- 2GH-15570 (Segmentation fault (access null pointer) in ext/dom/html5_serializer.c) 3--CREDITS-- 4YuanchengJiang 5--EXTENSIONS-- 6dom 7--FILE-- 8<?php 9$html = <<<HTML 10<head> 11</html> 12HTML; 13$dom = Dom\HTMLDocument::createFromString($html, LIBXML_NOERROR); 14$a = $dom->head->firstChild->cloneNode(false); 15var_dump($dom->saveHTML($a)); 16?> 17--EXPECT-- 18string(1) " 19" 20