PHP script to render a single transparent pixel (PNG or GIF)

Question

I have to create a PHP that will return an image stream of one transparent dot (PNG or GIF)

Could you point me to an easy to use solution ?

Thanks a lot

Answer 1

header('Content-Type: image/png');
echo base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=');