note 101286 deleted from function.imagecolorallocate by danbrown

Note Submitter: kbolino at sdf dot lonestar dot org ---- 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 ?>