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_View

    17  * @subpackage Helper

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

    19  * @version    $Id: Json.php 23451 2010-11-28 13:10:03Z ramon $

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

    21  */

    22 

    23 /** Zend_Json */

    24 require_once 'Zend/Json.php';

    25 

    26 /** Zend_Controller_Front */

    27 require_once 'Zend/Controller/Front.php';

    28 

    29 /** Zend_View_Helper_Abstract.php */

    30 require_once 'Zend/View/Helper/Abstract.php';

    31 

    32 /**

    33  * Helper for simplifying JSON responses

    34  *

    35  * @package    Zend_View

    36  * @subpackage Helper

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

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

    39  */

    40 class Zend_View_Helper_Json extends Zend_View_Helper_Abstract

    41 {

    42     /**

    43      * Encode data as JSON, disable layouts, and set response header

    44      *

    45      * If $keepLayouts is true, does not disable layouts.

    46      *

    47      * @param  mixed $data

    48      * @param  bool $keepLayouts

    49      * NOTE:   if boolean, establish $keepLayouts to true|false

    50      *         if array, admit params for Zend_Json::encode as enableJsonExprFinder=>true|false

    51      *         this array can contains a 'keepLayout'=>true|false

    52      *         that will not be passed to Zend_Json::encode method but will be used here

    53      * @return string|void

    54      */

    55     public function json($data, $keepLayouts = false)

    56     {

    57         $options = array();

    58         if (is_array($keepLayouts))

    59         {

    60             $options     = $keepLayouts;

    61             $keepLayouts = (array_key_exists('keepLayouts', $keepLayouts))

    62                             ? $keepLayouts['keepLayouts']

    63                             : false;

    64             unset($options['keepLayouts']);

    65         }

    66 

    67         $data = Zend_Json::encode($data, null, $options);

    68         if (!$keepLayouts) {

    69             require_once 'Zend/Layout.php';

    70             $layout = Zend_Layout::getMvcInstance();

    71             if ($layout instanceof Zend_Layout) {

    72                 $layout->disableLayout();

    73             }

    74         }

    75 

    76         $response = Zend_Controller_Front::getInstance()->getResponse();

    77         $response->setHeader('Content-Type', 'application/json', true);

    78         return $data;

    79     }

    80 }