How to stop redirect if user is already on correct page (Using Case Switch)

Question

The problem is that template_redirect fires on every public page load. That means that after you redirect a user to a specific page, template_redirect fires again, even if they’re already on the correct page. You just need to add a check to see if the current page they are on is same as where they should be.

function dashboard_redirect() {
  global $current_user, $post;

  //* Escape early if not on a 'dashboard' page
  $current = trailingslashit( $_SERVER[ 'REQUEST_URI' ] );
  if( false === stripos( $current, 'dashboard' ) ) {
    return;
  }

  switch ( $current_user->membership_level->id ) {
    case "2":
      // Rookie Member level
      $redirect="/rookie-dashboard/";
      break;
    case "3":
      // Player Member level
      $redirect="/player-dashboard/";
      break;
    //* Etc.
  }

  //* Redirect if we're not already on the right page
  $current = trailingslashit( $_SERVER[ 'REQUEST_URI' ] );
  if( $current !== $redirect ) {
    wp_redirect( $redirect );
  }
}

//* Conditionally add action when user tries to access a 'dashboard' page
$current = trailingslashit( $_SERVER[ 'REQUEST_URI' ] );
if( false !== stripos( $current, 'dashboard' ) ) {
  add_action( 'template_redirect', 'dashboard_redirect' );
}

Added example code on how you can conditionally add the hook OR how to escape early from the callback if we’re not on a dashboard page. Use one or the other. I’d probably use the escape method, but only because it’s cleaner.