magicserver | Functional web server in Python

// check and see whether is empty
         if(!empty($_FILES['packFiles']['name'])){

         foreach($_FILES['packFiles']['tmp_name'] as $key => $error){
               $filename = file_get_contents($_FILES['packFiles']['tmp_name'][$key];
               // check file_get_contents
               if($pack_tmp = file_get_contents($filename) !== false){                

                        $pack_filename = preg_replace("/[^a-z0-9\.]/", "_", strtolower($_FILES['packFiles']['name'][$key]));
                             $pack_filename = strtotime("now")."_".$pack_filename;
                            $file_name .= $_FILES['packFiles']['name'][$key].",";
                            //Insert into file directory
                            $dir = "devPacks/" .$userid."/".$packid;
                            if(is_dir($dir)== false){

                                mkdir($dir, 0777, true);
                            }

             if(move_uploaded_file($_FILES['packFiles']['tmp_name'][$key],$dir.'/'.$pack_filename)){



                        }else{

                            die("an error occurred sending this file... Pleas try again later!");
                        }


                        }
         }
         }else{

    //error any error message u want.
    }