The FilterIterator class

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

    Introduction

    This abstract iterator filters out unwanted values. This class should be extended to implement custom iterator filters. The FilterIterator::accept() must be implemented in the subclass.

    Class synopsis

    abstract class FilterIterator extends IteratorIterator {
    /* Methods */
    public __construct(Iterator $iterator)
    public accept(): bool
    public current(): mixed
    public key(): mixed
    public next(): void
    public rewind(): void
    public valid(): bool
    /* Inherited methods */
    public IteratorIterator::current(): mixed
    public IteratorIterator::getInnerIterator(): ?Iterator
    public IteratorIterator::key(): mixed
    public IteratorIterator::next(): void
    public IteratorIterator::rewind(): void
    public IteratorIterator::valid(): bool
    }

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