# DOMNode->lookupPrefix()

(No version information available, might be only in CVS)

DOMNode->lookupPrefix() — Gets the namespace prefix of the node based on the namespace URI

### Description

DOMNode
string lookupPrefix ( string `$namespaceURI` )

Gets the namespace prefix of the node based on the namespace URI.

### Parameters

`namespaceURI`

  The namespace URI.

### Return Values

The prefix of the namespace.

### See Also

- DOMNode->lookupNamespaceURI()