The ParentIterator class

(PHP 5 >= 5.1.0, PHP 7)

简介

This extended FilterIterator allows a recursive iteration using RecursiveIteratorIterator that only shows those elements which have children.

ParentIterator extends RecursiveFilterIterator implements RecursiveIterator , OuterIterator {

/* 方法 */

public accept ( void ) : bool

public __construct ( RecursiveIterator $iterator )

public getChildren ( void ) : ParentIterator

public hasChildren ( void ) : bool

public next ( void ) : void

public rewind ( void ) : void

/* 继承的方法 */

}

ParentIterator::accept — Determines acceptability
ParentIterator::__construct — Constructs a ParentIterator
ParentIterator::getChildren — Return the inner iterator's children contained in a ParentIterator
ParentIterator::hasChildren — Check whether the inner iterator's current element has children
ParentIterator::next — Move the iterator forward
ParentIterator::rewind — Rewind the iterator