DOM
PHP Manual

The DOMNodeList class

类摘要

DOMNodeList {
/* 属性 */
readonly public int $length ;
/* 方法 */
DOMNode DOMNodelist::item ( int $index )
}

属性

length

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

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DOM
PHP Manual