<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Finder\Iterator;
/**
* CustomFilterIterator filters files by applying anonymous functions.
*
* The anonymous function receives a \SplFileInfo and must return false
* to remove files.
*
* @author Fabien Potencier <[email protected]>
*/
class CustomFilterIterator extends \FilterIterator
{
private $filters = [];
/**
* @param \Iterator $iterator The Iterator to filter
* @param callable[] $filters An array of PHP callbacks
*
* @throws \InvalidArgumentException
*/
public function __construct(\Iterator $iterator, array $filters)
{
foreach ($filters as $filter) {
if (!\is_callable($filter)) {
throw new \InvalidArgumentException('Invalid PHP callback.');
}
}
$this->filters = $filters;
parent::__construct($iterator);
}
/**
* Filters the iterator values.
*
* @return bool true if the value should be kept, false otherwise
*/
public function accept()
{
$fileinfo = $this->current();
foreach ($this->filters as $filter) {
if (false === $filter($fileinfo)) {
return false;
}
}
return true;
}
}