What potential issues can arise when trying to display PHP output as an image in a forum or website?

One potential issue that can arise when trying to display PHP output as an image in a forum or website is that the PHP code may not be executed properly, resulting in the image not being displayed. One way to solve this issue is to ensure that the PHP code is properly embedded within an image tag and that the server is configured to execute PHP code within image files. 

<img src="data:image/jpeg;base64,<?php echo base64_encode(file_get_contents('image.jpg')); ?>" />

Keywords

GD library imagecreatefromstring header content-type output buffering

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