note 121937 added to function.imagerotate

The angle in imagerotate() is the number of degrees to rotate the image anti-clockwise, but while it may seem natural to use '-90' to turn an image 90 degrees clockwise, the end result may appear on a slight angle, and may cause the rotated image to appear slightly blurred with a background or border. Excessively large angles may also present sampling issues. The easiest way to prevent these, is to ensure all angles are between 0 and 360. <?php while ( $angle < 0 ) { $angle += 360; } while ( $angle >= 360 ) { $angle -= 360; } $rotated = imagerotate( $image, $angle, $color ); ?> ---- Server IP: 208.43.231.9 Probable Submitter: 211.26.34.121 ---- Manual Page -- http://php.net/manual/en/function.imagerotate.php Edit -- https://master.php.net/note/edit/121937 Del: integrated -- https://master.php.net/note/delete/121937/integrated Del: useless -- https://master.php.net/note/delete/121937/useless Del: bad code -- https://master.php.net/note/delete/121937/bad+code Del: spam -- https://master.php.net/note/delete/121937/spam Del: non-english -- https://master.php.net/note/delete/121937/non-english Del: in docs -- https://master.php.net/note/delete/121937/in+docs Del: other reasons-- https://master.php.net/note/delete/121937 Reject -- https://master.php.net/note/reject/121937 Search -- https://master.php.net/manage/user-notes.php