Download file from DB

DownloadFromDb.php

<?php
	ob_start();
	ini_set ("display_errors", 1);
	
	if (isset($_REQUEST["id"])) {
		$id = $_REQUEST["id"];
		$c = mysqli_connect("localhost" , "root", "", "mcdb");
		$sql = "SELECT name, type, size, content " ."FROM photo WHERE id = '$id'";
		$rc = mysqli_query($c, $sql) or die('Error, query failed');
		list($name, $type, $size, $content) = mysqli_fetch_array($rc);
		// since we are expecting a single row
		header("Content-length: $size");
		header("Content-type: $type");
		header("Content-Disposition: attachment; filename=$name");
		echo $content;
		
		mysqli_free_result($rc);
		mysqli_close($c);	
	}
	
	ob_end_flush();
	ini_set ("display_errors", 0);

?>