Запись чекбоксов в бд

<form action="obr.php" method="post">
 
<?php 
    
    $db_host = '';
    $db_name = '';
    $db_username = '';
    $db_password = '';
    $db_table_to_show = 'ip';
 
    
    $connect_to_db = mysql_connect($db_host, $db_username, $db_password)
        or die("Could not connect: " . mysql_error());
 
    
    mysql_select_db($db_name, $connect_to_db)
        or die("Could not select DB: " . mysql_error());
 
    
    $qr_result = mysql_query("select * from " . $db_table_to_show)
        or die(mysql_error());
 
 
    while($data = mysql_fetch_array($qr_result)){ 
                //$ip = "".$data['ip']."";      
           
                echo "<input type=checkbox name='ipadr[]' value='" . $data['ip'] . "'>" . $data['ip'] . "<br />";             
        
    }
 
    mysql_close($connect_to_db);
?>
 
<input type="submit" name="formSubmit" value="Submit" />
</form>

<?php 
 
$name = $_POST['ip']; 
$asd = $_POST['ipadr']; 
$reo = implode('[]', $asd);
 
$db_host = '';
$db_username = '';
$db_password = '';
$db_name = '';
 
$dbconnect = mysql_connect($db_host, $db_username, $db_password) or die("Could not connect"); 
 
mysql_select_db($db_name, $dbconnect);
 
$query = "INSERT INTO `command` VALUES ('$reo')";
 
mysql_query($query);
 
if (!$query) {
      die('Ошибка');
      }
echo 'Команда успешно отправлена';
 
mysqli_close($dbconnect); 
?>