<?php

  session_start();
  
  function message() {
    if (isset($_SESSION["message"])) {
      $output = "<div class=\"message\">";
      $output .= htmlentities($_SESSION["message"]);
      $output .= "</div>";
      
      // clear message after use
      $_SESSION["message"] = null;
      
      return $output;
    }
  }

  function errors() {
    if (isset($_SESSION["errors"])) {
      $errors = $_SESSION["errors"];
      
      // clear message after use
      $_SESSION["errors"] = null;
      
      return $errors;
    }
  }
  
?>