1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Feed_Reader

    17  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    18  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    19  * @version    $Id: Category.php 20953 2010-02-06 17:55:34Z padraic $

    20  */

    21  

    22 /**

    23  * @see Zend_Feed_Reader_Collection_CollectionAbstract

    24  */

    25 require_once 'Zend/Feed/Reader/Collection/CollectionAbstract.php';

    26 

    27 /**

    28  * @category   Zend

    29  * @package    Zend_Feed_Reader

    30  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    31  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    32  */

    33 class Zend_Feed_Reader_Collection_Category

    34 extends Zend_Feed_Reader_Collection_CollectionAbstract

    35 {

    36 

    37     /**

    38      * Return a simple array of the most relevant slice of

    39      * the collection values. For example, feed categories contain

    40      * the category name, domain/URI, and other data. This method would

    41      * merely return the most useful data - i.e. the category names.

    42      *

    43      * @return array

    44      */

    45     public function getValues() {

    46         $categories = array();

    47         foreach ($this->getIterator() as $element) {

    48             if (isset($element['label']) && !empty($element['label'])) {

    49                 $categories[] = $element['label'];

    50             } else {

    51                 $categories[] = $element['term'];

    52             }

    53         }

    54         return array_unique($categories);

    55     }

    56 

    57 }