Problème d’utilisation header("Location:x.php");

<?php
if(isset($_POST['submit']))
                            {  
$result = mysql_query("SELECT * FROM admin WHERE login='" . $_POST["login"] . "' and MP = '". $_POST["psw"]."'");
$row  = mysql_fetch_array($result);
if(is_array($row)) {
$_SESSION["CIN"] = $row[CIN];
	if($row!=0){	
		header("Location:profil.php");
	}}

else 
{
$result = mysql_query("SELECT * FROM topadmin WHERE login='" . $_POST["login"] . "' and MP = '". $_POST["psw"]."'");

$rows  = mysql_fetch_array($result);
if(is_array($rows)) {

$_SESSION["CIN"] = $rows[CIN];
	if($rows!=0){
		header("Location:super_user\reclame.php");
	}
} 
else
$result = mysql_query("SELECT * FROM users WHERE login='" . $_POST["login"] . "' and MP = '". $_POST["psw"]."'");
$row  = mysql_fetch_array($result);
if(is_array($row)) {
$_SESSION["CIN"] = $row[CIN];

	if($row!=0){
		
		header("Location:users\Ratard_user.php");
	}}

else echo ('<script> alert("Votre login ou le mot de passe est invalide");</script>');;
}}
?>