Lost some hours to find out how to save multirows result of mysqli_stmt to array, when get_result prohibited.
Idea, which works is using store_result
$stmt=$this->mysqli->prepare("SELECT surname, name, user_id, last_m_own, last_m_str, role FROM users WHERE referer_id=(?)");
$stmt->bind_param('i',$referer_id);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($ans['surname'], $ans['name'], $ans['user_id'], $ans['last_m_own'], $ans['last_m_str'], $ans['role']);
$j=$stmt->num_rows;
for ($i=0;$i<$j;$i++){
$stmt->data_seek($i);
$stmt->fetch();
foreach ($ans as $key=>$value){
$result[$i][$key]=$value;
}
}
Hope will helpful for such newbies as me