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<?php
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// +-----------------------------------------------------------------------+
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// | PhpWebGallery - a PHP based picture gallery                           |
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// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
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// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
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// +-----------------------------------------------------------------------+
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// | branch        : BSF (Best So Far)
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// | file          : $RCSfile: random.php,v $
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// | last update   : $Date: 2005/01/07 23:10:51 $
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// | last modifier : $Author: plg $
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// | revision      : $Revision: 1.2 $
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify  |
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// | it under the terms of the GNU General Public License as published by  |
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// | the Free Software Foundation                                          |
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// |                                                                       |
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// | This program is distributed in the hope that it will be useful, but   |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
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// | General Public License for more details.                              |
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// |                                                                       |
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// | You should have received a copy of the GNU General Public License     |
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// | along with this program; if not, write to the Free Software           |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA.                                                                  |
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// +-----------------------------------------------------------------------+
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// +-----------------------------------------------------------------------+
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// |                          define and include                           |
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// +-----------------------------------------------------------------------+
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define('PHPWG_ROOT_PATH','./');
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include_once( PHPWG_ROOT_PATH.'include/common.inc.php' );
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// +-----------------------------------------------------------------------+
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// |                     generate random element list                      |
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// +-----------------------------------------------------------------------+
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// we must not show pictures of a forbidden category
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$where = '';
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if ( $user['forbidden_categories'] != '' )
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{
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  $where = 'WHERE category_id NOT IN ('.$user['forbidden_categories'].')';
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}
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$query = '
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SELECT DISTINCT(id)
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  FROM '.IMAGES_TABLE.'
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    INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id = ic.image_id
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  '.$where.'
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  ORDER BY RAND(NOW())
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  LIMIT 0, '.$conf['top_number'].'
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;';
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$result = pwg_query($query);
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$ids = array();
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while ($row = mysql_fetch_array($result))
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{
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  array_push($ids, $row['id']);
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}
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// +-----------------------------------------------------------------------+
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// |                                redirect                               |
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// +-----------------------------------------------------------------------+
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$url = PHPWG_ROOT_PATH.'category.php?cat=list&amp;list='.implode(',', $ids);
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redirect(add_session_id($url));
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?>