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。

abstract class FilterIterator extends IteratorIterator {

/* 方法 */

public __construct(Iterator $iterator)

/* 继承的方法 */

}

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::getInnerIterator — Get the inner iterator
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