Function for download file links with php -

i want add function download files uploaded other day. not handy php dont know how add function , generate link listed files @ time.

here php code:-

// destination folder downloaded files  $date = date('m.d.y');  mkdir("uploads/" . $date, 0777, true);  $upload_folder = 'uploads/' . $date;  // if browser supports sendasbinary () can use array $ _files if(count($_files)>0) {      if( move_uploaded_file( $_files['upload']['tmp_name'] , $upload_folder.'/'.$_files['upload']['name'] ) ) {         echo 'done';     }     exit(); } else if(isset($_get['up'])) {     // if browser not support sendasbinary ()     if(isset($_get['base64'])) {         $content = base64_decode(file_get_contents('php://input'));     } else {         $content = file_get_contents('php://input');     }      $headers = getallheaders();     $headers = array_change_key_case($headers, case_upper);      if(file_put_contents($upload_folder.'/'.$headers['up-filename'], $content)) {         echo 'done';     }     exit(); }