PHP - MySQL - Delete Row

Question

I am not too sure what i am doing wrong. i am trying to delete the entire row with this code but it is not working. No error is happening it prints the line that it was dele

Answer 1

else
    {
    $qry = "SELECT * FROM my_login WHERE email = '".$email."' LIMIT 1";
    $res = mysql_query($qry);
    if(mysql_num_rows($res) > 0)
        {
        echo "Email already exists!";
        }
    else
        {
        $qry="INSERT INTO my_login SET name='$name',city='$city',comment='$comt',password='$pass',email='$email'";
        mysql_query($qry);
        }
    }       
}
?>