download file output the content to the screen

<?php
 $file = $_GET['file']; //Get the file from URL variable
 $file_path = "assets/files/".$file; //Set the file path w.r.t the download.php... It may be different for u

 if (file_exists($file_path) && ($file != '') && (substr($file,1,1)!='.') && (substr($file,1,1)!='/'))
 {
   $size = filesize($file_path);
   header("Content-Type: application/force-download; name=\"" . basename($file_path) . "\""); 	
 
   header("Content-Transfer-Encoding: binary");	
   header("Content-Length: $size"); 	
   header("Content-Disposition: attachment; filename=\"" . basename($file_path) . "\"");
   header("Expires: 0");
   header("Cache-Control: no-cache, must-revalidate");
   header("Pragma: no-cache");
   flush();	 
   readfile($file_path); 
	
   echo "$file successfully downloaded<br>";
  return true;
 }
 else 
 {
    echo "Sorry, the file ".$file." does not exist!<br>";
   return false;
 }
?>

 <p>Downloading file...</p>
 [[download]]