(PHP 5 >= 5.1.2, PHP 7, PECL xmlwriter >= 0.1.0)
XMLWriter::startAttributeNs -- xmlwriter_start_attribute_ns — Create start namespaced attribute
Object oriented style
public XMLWriter::startAttributeNs ( string|null $prefix , string $name , string|null $namespace ) : bool
Procedural style
xmlwriter_start_attribute_ns ( XMLWriter $writer , string|null $prefix , string $name , string|null $namespace ) : bool
Starts a namespaced attribute.
writer
Only for procedural calls. The XMLWriter instance that is being modified. This object is returned from a call to xmlwriter_open_uri() or xmlwriter_open_memory().
prefix
The namespace prefix.
name
The attribute name.
namespace
 The namespace URI. If namespace is null, the namespace declaration will be omitted. 
 Returns true on success or false on failure. 
| Version | Description | 
|---|---|
| 8.0.0 |  writer expects an XMLWriter instance now; previously, a resource was expected.  |  
| 8.0.0 |  prefix is nullable now.  |  
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    https://www.php.net/manual/en/function.xmlwriter-start-attribute-ns.php