FilterIterator::__construct

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

FilterIterator::__construct — Construct a filterIterator

说明

public FilterIterator::__construct(Iterator $iterator)

Constructs a new FilterIterator, which consists of a passed in iterator with filters applied to it.

警告

本函数还未编写文档，仅有参数列表。

参数

iterator: The iterator that is being filtered.

参见

LimitIterator::__construct() - Construct a LimitIterator

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michael dot kaefer1 at gmx dot at ¶

5 years ago

Usage example:

<?php

class AdultFilter extends \FilterIterator
{
    public function accept()
    {
        $person = $this->current();
        if (18 <= $person[1]) {
            return true;
        }
        return false;
    }
}

$persons = new \ArrayIterator([
    ['John', 27],
    ['Jack', 15],
    ['Jeff', 54],
]);

$adults = new AdultFilter($persons);

foreach ($adults as $adult) {
    var_dump($adult);
}