DOM
PHP Manual

The DOMNamedNodeMap class

(PHP 5, PHP 7)

Class synopsis

DOMNamedNodeMap implements Traversable , Countable {
/* Properties */
readonly public int $length ;
/* Methods */
DOMNode getNamedItem ( string $name )
DOMNode getNamedItemNS ( string $namespaceURI , string $localName )
DOMNode item ( int $index )
}

Properties

length

The number of nodes in the map. The range of valid child node indices is 0 to length - 1 inclusive.

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DOM
PHP Manual