Event based task Creation for Podiohelp.com

/* CODE BLOCK 1 */
switch ($_POST['type']) {
      case 'item.create':
        // Do something. item_id is available in $_POST['item_id']
        $item = $api->item->getBasic($_POST['item_id']);
        $created_via = strtolower( $item['initial_revision']['created_via']['name'] );

        //is it created via webform or mail?
        if (in_array($created_via, array('webform','mail'))){
            $task = array(
                'text' => 'Task title goes here',
                'description' => 'Description of task goes here',
                'responsible' => USER_ID, // the assigned user
            );

            $result = $api->task->createWithReference('item',$_POST['item_id'],$task);
            $task_id = $result['task_id'];
        }
    break;

    /* CODE BLOCK 2 */
    case 'item.update':
        // get the current Value of the Candidate Stage field
        $status = $api->item->getFieldValue($_POST['item_id'],APP_FIELD_ID); // field id set as a constant

        // read first value of "applicant-stage", if "Rejected", create task
        if ($status[0]['value'] == 'Rejected'){

            $task = array(
                'text' => 'Task title goes here',
                'description' => 'Description of task goes here',
                'responsible' => USER_ID, // the assigned user
            );

            $result = $api->task->createWithReference('item',$_POST['item_id'],$task);
            $task_id = $result['task_id'];
        }
    break;

    /* END CODE BLOCK 2 */
}
/* END CODE BLOCK 1 */