the dreaded “Warning: imagecreatefromjpeg() : '/tmp/filename' is not a valid JPEG file in /phpfile.php on line xxx”

Question

I\'ve been getting this warning when some people upload images to our site :

Warning: imagecreatefromjpeg() [function.imagecreatefromjpeg]: gd-jpe

Answer 1

This image cause a never-ending request to the server in Firefox (3.6.10). Firefox says it contains errors.