What potential issues can arise when trying to display an image using PHP and a header redirect?

When using a header redirect in PHP to display an image, the main issue that can arise is that the image data might not be sent correctly due to the redirect headers being sent before the image data. To solve this issue, you can use output buffering to capture the image data before sending any headers. 

ob_start();
$image = imagecreatefromjpeg('image.jpg');
header('Content-Type: image/jpeg');
imagejpeg($image);
ob_end_flush();

Keywords

image display PHP header redirect content-type caching

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