标头（“ Content-Type：图片/ jpeg”）不起作用

Question

Having read through all the similar questions, no situation is like mine. After cutting all the crap, my code is:

<?php
$file = 'Images\Bird1.jpg';
header('Content-Type: image/jpeg');
imagejpeg($file);
?>

But it dispays a blank page. The path\\file does exist, I checked it with code like:

if (file_exists($file))

The file type is indeed image/jpeg, this I also checked in the more extensive version of my code. Please help?

Answer 1

imagejpeg($file);

This function requires a resource, not a filename. You are looking for

readfile($file);

http://php.net/manual/en/function.readfile.php