PDO获取类，消息

Question

I have problem with FETCH_CLASS. This part of code not displaying any data from my database.

class Names {
   public $name, $mail, $city, $entry;
}

$stmt = $db->query('SELECT * FROM data');
$query->setFetchMode(PDO::FETCH_CLASS, 'Names');
while($r = $stmt->fetch()){
print_r($r);
} 

Also I have problem with this thing. Nothing happens.

$stmt = $db->query('SELECT * FROM data');

while($r = $stmt->fetch()){
echo $r->message, '<br>';
}

And another question. All this code must be always before execute() function, or can It be after somehow?

Answer 1

Try this for ist query:

$stmt = $db->query('SELECT * FROM data');
$stmt->setFetchMode(PDO::FETCH_CLASS, 'Names');
while($r = $stmt->fetch()){
print_r($r);
}