That’s because fetch_assoc
is not part of a mysqli_stmt
object. fetch_assoc
belongs to the mysqli_result
class. You can use mysqli_stmt::get_result
to first get a result object and then call fetch_assoc
:
$selectUser = $db->prepare("SELECT `id`,`password`,`salt` FROM `users` WHERE `username`=?");
$selectUser->bind_param('s', $username);
$selectUser->execute();
$result = $selectUser->get_result();
$assoc = $result->fetch_assoc();
Alternatively, you can use bind_result
to bind the query’s columns to variables and use fetch()
instead:
$selectUser = $db->prepare("SELECT `id`,`password`,`salt` FROM `users` WHERE `username`=?");
$selectUser->bind_param('s', $username);
$selectUser->bind_result($id, $password, $salt);
$selectUser->execute();
while($selectUser->fetch())
{
//$id, $password and $salt contain the values you're looking for
}