The RecursiveIterator interface

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

简介

Classes implementing RecursiveIterator can be used to iterate over iterators recursively.

interface RecursiveIterator extends Iterator {

/* 方法 */

public hasChildren(): bool

/* 继承的方法 */

abstract public Iterator::key(): scalar

abstract public Iterator::next(): void

abstract public Iterator::rewind(): void

abstract public Iterator::valid(): bool

}