在php中创建xml时删除xml版本标记

Question

I'm creating a xml using this

$customXML = new SimpleXMLElement('<abc></abc>');

after adding some attributes onto this, when I try to print it it appears like this,

<?xml version="1.0"?>
<abc id="332"><params><param name="aa">33</param></params></abc>

Is there a way to remove the xml version node ? Thank you

Answer 1

In theory you can provide the LIBXML_NOXMLDECL option to drop the XML declaration when saving a document, but this is only available in Libxml >= 2.6.21 (and buggy). An alternative would be to use

$customXML = new SimpleXMLElement('<abc></abc>');
$dom = dom_import_simplexml($customXML);
echo $dom->ownerDocument->saveXML($dom->ownerDocument->documentElement);