note 86577 added to function.imageinterlace

As this can't return the existing setting for an image, I had to hunt around but found this code to detect if an image has the progressive bit set. It's not perfect, but it does the job:- http://www.corecoding.com/php-jpeg-progressive-check_c28.html ---- Server IP: 92.48.74.199 Probable Submitter: 62.49.148.251 ---- Manual Page -- http://www.php.net/manual/en/function.imageinterlace.php Edit -- https://master.php.net/note/edit/86577 Del: integrated -- https://master.php.net/note/delete/86577/integrated Del: useless -- https://master.php.net/note/delete/86577/useless Del: bad code -- https://master.php.net/note/delete/86577/bad+code Del: spam -- https://master.php.net/note/delete/86577/spam Del: non-english -- https://master.php.net/note/delete/86577/non-english Del: in docs -- https://master.php.net/note/delete/86577/in+docs Del: other reasons-- https://master.php.net/note/delete/86577 Reject -- https://master.php.net/note/reject/86577 Search -- https://master.php.net/manage/user-notes.php