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C:/Abyss Web Server/htdocs/pppblog/File/Archive/Predicate/_[ Writable ]

File:C:/Abyss Web Server/htdocs/pppblog/File/Archive/Predicate/Extension.php

<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

/**
 * Keep only the files that have a specific extension
 *
 * PHP versions 4 and 5
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330,Boston,MA 02111-1307 USA
 *
 * @category   File Formats
 * @package    File_Archive
 * @author     Vincent Lascaux <vincentlascaux@php.net>
 * @copyright  1997-2005 The PHP Group
 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL
 * @version    CVS: $Id: Extension.php,v 1.1 2005/11/05 23:29:16 joerg72 Exp $
 * @link       http://pear.php.net/package/File_Archive
 */

require_once "File/Archive/Predicate.php";

/**
 * Keep only the files that have a specific extension
 *
 * @see        File_Archive_Predicate, File_Archive_Reader_Filter
 */
class File_Archive_Predicate_Extension extends File_Archive_Predicate
{
    var $extensions;

    /**
     * @param $extensions array or comma separated string of allowed extensions
     */
    function File_Archive_Predicate_Extension($extensions)
    {
        if (is_string($extensions)) {
            $this->extensions = explode(",",$extensions);
        } else {
            $this->extensions = $extensions;
        }
    }
    /**
     * @see File_Archive_Predicate::isTrue()
     */
    function isTrue(&$source)
    {
        $filename = $source->getFilename();
        $pos = strrpos($filename, '.');
        $extension = "";
        if ($pos !== FALSE) {
            $extension = strtolower(substr($filename, $pos+1));
        }
        $result = in_array($extension, $this->extensions);

        return $result;
    }
}

?>

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