Answers for "if session has message else laravel"

laravel check if session variable exists

if(Session::has('...'))

Laravel: Session message exist while click on browser back button

// Add the following code to your view (blade)
// It will set headers to NOT cache a page
<?php
  header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
  header("Cache-Control: post-check=0, pre-check=0", false);
  header("Pragma: no-cache");
?>