FilterIterator::__construct()

(PHP 5>=5.1.0,PHP 7)

Construct a filterIterator

说明

publicFilterIterator::__construct(Iterator$iterator)

Constructs a newFilterIterator,which consists of a passed in$iteratorwith filters applied to it.

Warning
本函数还未编写文档，仅有参数列表。

参数

$iterator: The iterator that is being filtered.

返回值

TheFilterIterator.

参见

LimitIterator::__construct() Construct a LimitIterator

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);
}