PHP script to mail you an alert whenever someone scans your QR Code.
You can generate a QR Code at http://goqr.me/ pointing to http://example.com/qrcode.jpg and the htaccess will redirect the visitor to the phpscript. (You can replace qrcode.jpg for the filename of your choice, just edit it on the .htaccess)
Also, on qrcode.php, change the mail recipient info and the url to redirect the visitor.
If you want to show the user an image (jpg, png, gif) instead of redirecting. you can replace on qrcode.php the line:
header("Location: http://www.example.com/");
by the following lines:
$base64_image_encoded = '/9j/4Ra...UAf/Z';
header('Cache-Control: max-age=86400');
header('Content-Type: image/jpeg');
exit(base64_decode($base64_image_encoded));
Where $base64_image_encoded holds the Base64 string of the image. You can convert convert any image in base64 here: http://base64-image.de
