note 101286 added to function.imagecolorallocate

To amend what oni-kun[at]oni-kun[dot]com said, imagecolorallocate returns an RGB hex value (and thus can be bypassed) only if the image in question is a 32-bit color image (as created by imagecreatetruecolor). If the image is a palette-based image (as created by imagecreate), then you must use imagecolorallocate, which in this case returns a palette index number and not an RGB hex value. Code example, for a 32-bit color image: <?php $im = imagecreatetruecolor(100, 100); $white = imagecolorallocate($im, 255, 255, 255); // now $white == 0xFFFFFF ?> Code example, for a palette-based image: <?php $im = imagecreate(100, 100); $white = imagecolorallocate($im, 255, 255, 255); // now $white == index of color #FFFFFF in palette ?> ---- Server IP: 192.41.42.26 Probable Submitter: 130.85.237.74 ---- Manual Page -- http://www.php.net/manual/en/function.imagecolorallocate.php Edit -- https://master.php.net/note/edit/101286 Del: integrated -- https://master.php.net/note/delete/101286/integrated Del: useless -- https://master.php.net/note/delete/101286/useless Del: bad code -- https://master.php.net/note/delete/101286/bad+code Del: spam -- https://master.php.net/note/delete/101286/spam Del: non-english -- https://master.php.net/note/delete/101286/non-english Del: in docs -- https://master.php.net/note/delete/101286/in+docs Del: other reasons-- https://master.php.net/note/delete/101286 Reject -- https://master.php.net/note/reject/101286 Search -- https://master.php.net/manage/user-notes.php