After ajaxReturn tp, but also with echo $ rt it?

• First, you want to see ajaxReturn prototype:

protected function ajaxReturn ($data, $type='', $json_option=0){
........

switch(strtoupper($type)){
case: 'json':
    header('Content-Type: application/json;  charset=utf-8');
    exit(json_encode($data, $json_option);
break;

}

}

So, ajaxReturn using exit ( '...', $ json_option ) will in itself, it has the output string contents of json encoded. Behind this unnecessary echo the

• Secondly, the use of ajaxReturn, scripts have exit, then you echo what then, have been ineffective!