if(!isset($_SESSION['user']))

{

header("Location: ../index.php");

}

$email=$_SESSION['user'];

$res=mysql_query("SELECT * FROM user_businessleads WHERE user_email='$email'");

$row=mysql_fetch_array($res);

  if(isset($_POST['submit']))

  {

       $looking_for = $_POST['looking_for'];

$services = $_POST['services'];

$mybudget = $_POST['mybudget'];

$around = $_POST['around'];

$s_reguirement = $_POST['s_reguirement'];

$chk="";

$email=$_SESSION['user'];  

     foreach($services as $chk1)  

   {  

      $chk .= $chk1.",";

 

}

 if(!empty($email))

 {

  $query=mysql_query("INSERT INTO user_businessleads(services,user_email,looking_for,mybudget,around,s_requirment)values('$chk','$email','$looking_for','$mybudget','$around','$s_reguirement')"); 

}

else

{ 

$updated=mysql_query("UPDATE user_businessleads SET services='$chk',looking_for='$looking_for',mybudget='$mybudget',around='$around',s_requirment='$s_reguirement'WHERE user_email='$email'")or die;

}

}

in this query in my database value is inserting but did not update .

i want that is email id not exit in table which is given first insert after that if it is exit the only updated

plz suggest  me what the changes required in above code....