PHP JSON::json示例

 function handle(&$params)
 {
     $app =& Dataface_Application::getInstance();
     if (!@$_POST['-valuelist']) {
         echo JSON::error("No valuelist specified.");
         exit;
     }
     $valuelist = $_POST['-valuelist'];
     $query =& $app->getQuery();
     $table =& Dataface_Table::loadTable($query['-table']);
     if (!@$_POST['-value']) {
         echo JSON::error("No value was provided to be appended to the valuelist.");
         exit;
     }
     $value = $_POST['-value'];
     if (@$_POST['-key']) {
         $key = $_POST['-key'];
     } else {
         $key = null;
     }
     $vt =& Dataface_ValuelistTool::getInstance();
     $res = $vt->addValueToValuelist($table, $valuelist, $value, $key, true);
     if (PEAR::isError($res)) {
         echo JSON::error($res->getMessage());
         exit;
     }
     echo JSON::json(array('success' => 1, 'value' => array('key' => $res['key'], 'value' => $res['value'])));
     exit;
 }