add.php

$Category = new Category($Conn);

$categories = $Category->getAllCategories();

// pass this data to categories.tpl template file
$smarty->assign('categories',$categories);

if($_POST){
  if(!$_POST['recipe_name']){
    $error = "Recipe name not set";
  }else if(!$_POST['recipe_instructions']){
    $error = "Recipe instructions not set";
  }else if(!isset($_FILES['recipe_name'])){
    $error = "Please upload a recipe image";
  }

  if($error){
    $smarty->assign('error', $error);
  }else{
    $random = substr(str_shuffle(MD5(microtime())), 0,10);
    $new_filename = $random .$_FILES['recipe_image']['name'];
    if(move_uploaded_file($_FILES["recipe_image"]["tmp_name"],__DIR__.'/../user_images/'.$new_filename)){

      $attempt = new Recipe;
      $attempt->addRecipe($_POST);

      if($attempt){
        $smarty->assign('success',"Your recipe has been added");
      }else{
        $smarty->assign('error',"An error occured.");
      }
    }
  }
}