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# DOMNode->lookupPrefix()

(no version information, might be only in CVS)

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

## 说明

class DOMNode {
string lookupPrefix ( string namespaceURI )
}

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

## 参数

namespaceURI

  The namespace URI.

## 返回值

The prefix of the namespace.

## 参见

DOMNode->lookupNamespaceURI()

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DOMNode->lookupNamespaceURI() | 上一级 | DOMNode->normalize()