/**
 * This function handles redirecting a user to a given location.
 * It constructs the $target's absolute path to avoid potential problems.
 * NOTE: This must be run before any output, or an error will result.
 */
function redirectTo($target)
{
    $host  = $_SERVER['HTTP_HOST'];
    $uri   = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
    header("Location: http://$host$uri/$target");
}