# FilterIterator 类

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

## 简介

这个抽象类的遍历并过滤出不想要的值。这个类应该被实现了迭代过滤器的类继承 FilterIterator::accept() 方法必须被子类实现。

## 类摘要

abstract class FilterIterator extends IteratorIterator {
/* 方法 */
public __construct(Iterator `$iterator`)
public accept(): bool
public current(): mixed
public key(): mixed
public next(): void
public rewind(): void
public valid(): bool
/* 继承的方法 */
public IteratorIterator::current(): mixed
public IteratorIterator::getInnerIterator(): ?Iterator
public IteratorIterator::key(): mixed
public IteratorIterator::next(): void
public IteratorIterator::rewind(): void
public IteratorIterator::valid(): bool
}

## 目录

- FilterIterator::accept — Check whether the current element of the iterator is acceptable
- FilterIterator::__construct — Construct a filterIterator
- FilterIterator::current — Get the current element value
- FilterIterator::key — Get the current key
- FilterIterator::next — Move the iterator forward
- FilterIterator::rewind — Rewind the iterator
- FilterIterator::valid — Check whether the current element is valid

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open