The RecursiveCachingIterator class

Introduction

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

...

class RecursiveCachingIterator extends CachingIterator implements RecursiveIterator {

/* Inherited constants */

const int CachingIterator::CALL_TOSTRING = 1;

const int CachingIterator::CATCH_GET_CHILD = 16;

const int CachingIterator::TOSTRING_USE_KEY = 2;

const int CachingIterator::TOSTRING_USE_CURRENT = 4;

const int CachingIterator::TOSTRING_USE_INNER = 8;

const int CachingIterator::FULL_CACHE = 256;

/* Methods */

public __construct( Iterator $iterator, int $flags = RecursiveCachingIterator::CALL_TOSTRING)

public getChildren(): ?RecursiveCachingIterator

public hasChildren(): bool

/* Inherited methods */

public CachingIterator::count(): int

public CachingIterator::current(): mixed

public CachingIterator::getCache(): array

public CachingIterator::getFlags(): int

public CachingIterator::getInnerIterator(): Iterator

public CachingIterator::hasNext(): bool

public CachingIterator::key(): scalar

public CachingIterator::next(): void

public CachingIterator::offsetExists(string $key): bool

public CachingIterator::offsetGet(string $key): mixed

public CachingIterator::offsetSet(string $key, mixed $value): void

public CachingIterator::offsetUnset(string $key): void

public CachingIterator::rewind(): void

public CachingIterator::setFlags(int $flags): void

public CachingIterator::__toString(): string

public CachingIterator::valid(): bool

public IteratorIterator::current(): mixed

public IteratorIterator::getInnerIterator(): ?Iterator

public IteratorIterator::key(): mixed

public IteratorIterator::next(): void

public IteratorIterator::rewind(): void

public IteratorIterator::valid(): bool

}

RecursiveCachingIterator::__construct — Construct
RecursiveCachingIterator::getChildren — Return the inner iterator's children as a RecursiveCachingIterator
RecursiveCachingIterator::hasChildren — Check whether the current element of the inner iterator has children

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https://www.php.net/manual/en/class.recursivecachingiterator.php