PHP Manual
迭代器
The RecursiveIteratorIterator class

The RecursiveIteratorIterator class

(PHP 5, PHP 7)

简介

Can be used to iterate through recursive iterators.

类摘要

RecursiveIteratorIterator implements OuterIterator {

/* 常量 */

const int LEAVES_ONLY = 0 ;

const int SELF_FIRST = 1 ;

const int CHILD_FIRST = 2 ;

const int CATCH_GET_CHILD = 16 ;

/* 方法 */

public beginChildren ( ) : void

public beginIteration ( ) : void

public callGetChildren ( ) : RecursiveIterator

public callHasChildren ( ) : bool

public __construct ( Traversable $iterator [, int $mode = RecursiveIteratorIterator::LEAVES_ONLY [, int $flags = 0 ]] )

public current ( ) : mixed

public endChildren ( ) : void

public endIteration ( ) : void

public getDepth ( ) : int

public getInnerIterator ( ) : iterator

public getMaxDepth ( ) : mixed

public getSubIterator ([ int $level ] ) : RecursiveIterator

public key ( ) : mixed

public next ( ) : void

public nextElement ( ) : void

public rewind ( ) : void

public setMaxDepth ([ int $max_depth = -1 ] ) : void

public valid ( ) : bool

/* 继承的方法 */

public OuterIterator::getInnerIterator ( ) : Iterator

}

预定义常量

RecursiveIteratorIterator::LEAVES_ONLY
RecursiveIteratorIterator::SELF_FIRST
RecursiveIteratorIterator::CHILD_FIRST
RecursiveIteratorIterator::CATCH_GET_CHILD

Table of Contents

RecursiveIteratorIterator::beginChildren — Begin children
RecursiveIteratorIterator::beginIteration — Begin Iteration
RecursiveIteratorIterator::callGetChildren — Get children
RecursiveIteratorIterator::callHasChildren — Has children
RecursiveIteratorIterator::__construct — Construct a RecursiveIteratorIterator
RecursiveIteratorIterator::current — Access the current element value
RecursiveIteratorIterator::endChildren — End children
RecursiveIteratorIterator::endIteration — End Iteration
RecursiveIteratorIterator::getDepth — Get the current depth of the recursive iteration
RecursiveIteratorIterator::getInnerIterator — Get inner iterator
RecursiveIteratorIterator::getMaxDepth — Get max depth
RecursiveIteratorIterator::getSubIterator — The current active sub iterator
RecursiveIteratorIterator::key — Access the current key
RecursiveIteratorIterator::next — Move forward to the next element
RecursiveIteratorIterator::nextElement — Next element
RecursiveIteratorIterator::rewind — Rewind the iterator to the first element of the top level inner iterator
RecursiveIteratorIterator::setMaxDepth — Set max depth
RecursiveIteratorIterator::valid — Check whether the current position is valid