# DOMElement->setIdAttributeNS()

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DOMElement->setIdAttributeNS() — Declares the attribute specified by local name and namespace URI to be of type ID

### Description

DOMElement
void setIdAttributeNS ( string `$namespaceURI` , string `$localName` , bool `$isId` )

Declares the attribute specified by `localName` and `namespaceURI` to be of type ID.

### Parameters

`namespaceURI`

  The namespace URI of the attribute.

`localName`

  The local name of the attribute, as prefix:tagname.

`isId`

  Set it to `TRUE` if you want `name` to be of type ID, `FALSE` otherwise.

### Return Values

No value is returned.

### Errors/Exceptions

`DOM_NO_MODIFICATION_ALLOWED_ERR`

  Raised if the node is readonly.

`DOM_NOT_FOUND`

  Raised if `name` is not an attribute of this element.

### See Also

- DOMDocument->getElementById()
- DOMElement->setIdAttribute()
- DOMElement->setIdAttributeNode()