Current File : /home/admin/public_html/old/board/administrator/components/com_banners/helpers/banner.php
<?php
/**
* @version $Id: banner.php 14401 2010-01-26 14:10:00Z louis $
* @package Joomla
* @subpackage Banners
* @copyright Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
/**
* @package Joomla
* @subpackage Banners
*/
class BannerHelper
{
/**
* Returns a list of valid keywords based on the prefix in banner
* configuration
* @param mixed An array of keywords, or comma delimited string
* @return array
* @static
*/
function &getKeywords( $keywords )
{
static $instance;
if (!$instance)
{
$config =& JComponentHelper::getParams( 'com_banners' );
$prefix = $config->get( 'tag_prefix' );
$instance = array();
if (!is_array( $keywords ))
{
$keywords = explode( ',', $keywords );
}
foreach ($keywords as $keyword)
{
$keyword = trim( $keyword );
$regex = '#^' . $prefix . '#';
if (preg_match( $regex, $keyword ))
{
$instance[] = $keyword;
}
}
}
return $instance;
}
/**
* Checks if a URL is an image
*
* @param string
* @return URL
*/
function isImage( $url )
{
$result = preg_match( '#(\.bmp|\.gif|\.jpg|\.jpeg|\.png)$#i', $url );
return $result;
}
/**
* Checks if a URL is a Flash file
*
* @param string
* @return URL
*/
function isFlash( $url )
{
$result = preg_match( '#\.swf$#i', $url );
return $result;
}
}
?>