DOMNode::lookupPrefix

(PHP 5, PHP 7, PHP 8)

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

public DOMNode::lookupPrefix(string $namespace): ?string

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

The prefix of the namespace or null on error.

DOMNode::lookupNamespaceUri() - Gets the namespace URI of the node based on the prefix

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