1--TEST-- 2Serialize default and prefixed xmlns on elements 3--EXTENSIONS-- 4dom 5--FILE-- 6<?php 7 8$dom = Dom\XMLDocument::createFromString(<<<XML 9<?xml version="1.0" encoding="UTF-8"?> 10<root> 11 <a:child xmlns:a="urn:a" xmlns="urn:default"> 12 <default/> 13 </a:child> 14</root> 15XML); 16 17echo $dom->saveXml(); 18 19?> 20--EXPECT-- 21<?xml version="1.0" encoding="UTF-8"?> 22<root> 23 <a:child xmlns:a="urn:a" xmlns="urn:default"> 24 <default/> 25 </a:child> 26</root> 27