Question

My PHP class returns a small base64 encoded image, link this:

class Service
{

  function getLogo()
  {
    $image = "iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c
             QAAAARnQU1BAACxjwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwA";

    return 'data:image/png;base64,' . $image;
  }

}

Returning the image using json_encode will add \n after each line of $image:

$service = new Service();
$response = array('name' => $service->getName(), 'logo' => $service->getLogo());
header('Content-type: application/json');
echo json_encode($response);

How to handle it correctly?

Answer 1

You’ve mangled your base64 data by splitting it across two lines. it should be

function getLogo() {
    $image = "iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4cQAAAARnQU1BAACxjwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwA";

    return 'data:image/png;base64,' . $image;
}

with no line breaks.