PHP和MySQL - 准备好的语句不会返回特定的列

Question

I'm writing a website using PHP and MySQL and I'm using the following code to select everything from the table where ID is 0 or 1.
However, when I dump $op it appears as an empty string even though in the PhpMyAdmin it's not.
All other columns are displayed as expected except this one.
Anyone know what's wrong?

$stmt = $mysqli->prepare("SELECT * FROM `artikli` WHERE `id` = ?");
$stmt->bind_param('d',$id);
$stmt->execute();
$stmt->bind_result($id,$pl,$pr,$slika,$ime,$op);
$stmt->fetch();
var_dump($op);
$stmt->close();

Answer 1

Answer

I figured it out guys.
Free hosting is free for a reason.
I've downloaded the website to my local machine and now it works perfectly.