1--TEST-- 2Bug #67474 getElementsByTagNameNS and default namespace 3--EXTENSIONS-- 4dom 5--FILE-- 6<?php 7declare(strict_types=1); 8 9$doc = new DOMDocument(); 10$doc->loadXML('<root xmlns:x="x"><a/><x:a/></root>'); 11$list = $doc->getElementsByTagNameNS('', 'a'); 12var_dump($list->length); 13$list = $doc->getElementsByTagNameNS(null, 'a'); 14var_dump($list->length); 15 16$elem = $doc->documentElement; 17$list = $elem->getElementsByTagNameNS('', 'a'); 18var_dump($list->length); 19$list = $elem->getElementsByTagNameNS(null, 'a'); 20var_dump($list->length); 21 22?> 23--EXPECT-- 24int(1) 25int(1) 26int(1) 27int(1) 28