DOMNode::lookupNamespaceURI

    (PHP 5, PHP 7, PHP 8)

    DOMNode::lookupNamespaceURI — Gets the namespace URI of the node based on the prefix

    Description

    publicDOMNode::lookupNamespaceURI(?string$prefix): ?string

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

    Parameters

    prefix

    The prefix to look for. If this parameter is null, the method will return the default namespace URI, if any.

    Return Values

    Returns the associated namespace URI or null if none is found.

    See Also

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