File display using PHP and header() not working

Question

I'm trying to show any file in the browser using PHP and headers, but it isn't working with a PNG image, it shows a strange black square like this:

The Strange Blank Square

Here is my code:

<?php
    header('Content-Type: ' . mime_content_type($filepath));
    readfile($filepath);
    die();
?>

I already checked the $filepath variable, its the full path (E:\wwwPublic\myapp\application\controllers\..\..\documents\34807\image.PNG) I don't know what is going wrong in that code.

Do you have any idea(s) ?

Answer 1

I solved it, I found that Code Igniter has default headers, I needed to add ob_clean() to remove all of them and add my own, Thank you for your help