# DOMDocument->createAttributeNS()

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DOMDocument->createAttributeNS() — Create new attribute node with an associated namespace

### Description

DOMDocument
DOMAttr createAttributeNS ( string `$namespaceURI` , string `$qualifiedName` )

This function creates a new instance of class DOMAttr. This node will not show up in the document unless it is inserted with e.g. DOMNode->appendChild().

### Parameters

`namespaceURI`

  The URI of the namespace.

`qualifiedName`

  The tag name and prefix of the attribute, as prefix:tagname.

### Return Values

The new DOMAttr or `FALSE` if an error occured.

### Errors/Exceptions

`DOM_INVALID_CHARACTER_ERR`

  Raised if `qualifiedName` contains an invalid character.

`DOM_NAMESPACE_ERR`

  Raised if `qualifiedName` is a malformed qualified name, or if `qualifiedName` has a prefix and `namespaceURI` is `NULL`.

### See Also

- DOMNode->appendChild()
- DOMDocument->createAttribute()
- DOMDocument->createCDATASection()
- DOMDocument->createComment()
- DOMDocument->createDocumentFragment()
- DOMDocument->createElement()
- DOMDocument->createElementNS()
- DOMDocument->createEntityReference()
- DOMDocument->createProcessingInstruction()
- DOMDocument->createTextNode()