<?php
	
	//echo $_GET['url']; die();
	
	$url = '';
	
	/*if(array_key_exists('url', $_GET)
	   and filter_var($_GET['url'], FILTER_VALIDATE_URL)) {
		 $url = $_GET['url'];
	}*/
	$url                 = $_GET['url'];
	$chl                 = $url;
	$cht                 = "qr";
	$chs                 = "300x300";
	$choe                = "UTF-8";
	$qrcode              = 'https://chart.googleapis.com/chart?cht='. $cht . '&chs=' . $chs . '&chl=' . $chl . '&choe=' . $choe;
	header('Content-Type: image/png');
	header('Content-Disposition: attachment; filename="chart.png"');
	$image = file_get_contents($qrcode);
	header('Content-Length: ' . strlen($image));
	echo $image;
?>