(PHP 5, PHP 7, PHP 8)
DOMElement::hasAttributeNS — Checks to see if attribute exists
$namespace
, string $localName
): bool
Indicates whether attribute in namespace namespace
named localName
exists as a member of the element.
namespace
The namespace URI.
localName
The local name.
成功時返回 true
, 或者在失敗時返回 false
。