update : 2015.11.03
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The DOMNodeList class
DOM
PHP Manual

The DOMNodeList class

(PHP 5, PHP 7)

클래스 개요

DOMNodeList implements Traversable {
/* 프로퍼티 */
readonly public int $length ;
/* 메소드 */
DOMNode DOMNodelist::item ( int $index )
}

프로퍼티

length

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

참고

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DOM
PHP Manual