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name	type	size	perms	modified	actions
[parent directory]
CustomFilterIterator.php	file	1,527 B	0644	2026-06-26 15:18:24	edit
DateRangeFilterIterator.php	file	1,401 B	0644	2026-06-26 15:18:24	edit
DepthRangeFilterIterator.php	file	1,378 B	0644	2026-06-26 15:18:24	edit
ExcludeDirectoryFilterIterator.php	file	3,349 B	0644	2026-06-26 15:18:24	edit
FilecontentFilterIterator.php	file	1,418 B	0644	2026-06-26 15:18:24	edit
FilenameFilterIterator.php	file	1,105 B	0644	2026-06-26 15:18:24	edit
FileTypeFilterIterator.php	file	1,391 B	0644	2026-06-26 15:18:24	edit
LazyIterator.php	file	686 B	0644	2026-06-26 15:18:24	edit
MultiplePcreFilterIterator.php	file	3,224 B	0644	2026-06-26 15:18:24	edit
PathFilterIterator.php	file	1,423 B	0644	2026-06-26 15:18:24	edit
RecursiveDirectoryIterator.php	file	4,136 B	0644	2026-06-26 15:18:24	edit
SizeRangeFilterIterator.php	file	1,360 B	0644	2026-06-26 15:18:24	edit
SortableIterator.php	file	4,894 B	0644	2026-06-26 15:18:24	edit
VcsIgnoredFilterIterator.php	file	4,718 B	0644	2026-06-26 15:18:24	edit

editing: FilecontentFilterIterator.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Finder\Iterator;

use Symfony\Component\Finder\SplFileInfo;

/**
 * FilecontentFilterIterator filters files by their contents using patterns (regexps or strings).
 *
 * @author Fabien Potencier  <fabien@symfony.com>
 * @author Włodzimierz Gajda <gajdaw@gajdaw.pl>
 *
 * @extends MultiplePcreFilterIterator<string, SplFileInfo>
 */
class FilecontentFilterIterator extends MultiplePcreFilterIterator
{
    /**
     * Filters the iterator values.
     */
    public function accept(): bool
    {
        if (!$this->matchRegexps && !$this->noMatchRegexps) {
            return true;
        }

$fileinfo = $this->current();

if ($fileinfo->isDir() || !$fileinfo->isReadable()) {
            return false;
        }

$content = $fileinfo->getContents();
        if (!$content) {
            return false;
        }

return $this->isAccepted($content);
    }

/**
     * Converts string to regexp if necessary.
     *
     * @param string $str Pattern: string or regexp
     */
    protected function toRegex(string $str): string
    {
        return $this->isRegex($str) ? $str : '/'.preg_quote($str, '/').'/';
    }
}

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