(PHP 5 >= 5.1.0, PHP 7)
XMLReader::getAttributeNs — Get the value of an attribute by localname and URI
$localName
, string $namespaceURI
) : stringReturns the value of an attribute by name and namespace URI or an empty string if attribute does not exist or not positioned on an element node.
localNameThe local name.
namespaceURIThe namespace URI.
The value of the attribute, or an empty string (before PHP 5.6) or NULL
(from PHP 5.6 onwards) if no attribute with the given
localName and namespaceURI is
found or not positioned of element.
| 版本 | 说明 |
|---|---|
| 5.6.0 |
XMLReader::getAttributeNS() now returns NULL
if the attribute doesn't exist.
|