note 113009 added to function.imagecopyresampled

The ultimate smart image re-sizing routine. You provide the original image, and a desired width and/or height. The function will intelligently re-size the original image to fit, centered, within the specified dimensions. Either width or height can be omitted to have the re-size "lock" only on width or height. Fantastic for thumbnail generation. Designed to work with PNG's. function resize_image_smart($orig, $dest_width=null, $dest_height=null) { $orig_width = imagesx($orig); $orig_height = imagesy($orig); $vertical_offset = 0; $horizontal_offset = 0; if($dest_width == null) { if($dest_height == null) { die('$dest_width and $dest_height cant both be null!'); } // height is locked $dest_width = $dest_height * $orig_width / $orig_height; } else { if($dest_height == null) { // width is locked $dest_height = $dest_width * $orig_height / $orig_width; } else { // both dimensions are locked $vertical_offset = $dest_height - ($orig_height * $dest_width) / $orig_width; $horizontal_offset = $dest_width - ($dest_height * $orig_width) / $orig_height; if($vertical_offset < 0) $vertical_offset = 0; if($horizontal_offset < 0) $horizontal_offset = 0; } } $img = imagecreatetruecolor($dest_width, $dest_height); imagesavealpha($img, true); imagealphablending($img, false); $transparent = imagecolorallocatealpha($img, 0, 0, 0, 127); imagefill($img, 0, 0, $transparent); imagecopyresampled($img, $orig, round($horizontal_offset / 2), round($vertical_offset / 2), 0, 0, round($dest_width - $horizontal_offset), round($dest_height - $vertical_offset), $orig_width, $orig_height); return $img; } ---- Server IP: 69.147.83.199 Probable Submitter: 71.234.35.197 ---- Manual Page -- http://php.net/manual/en/function.imagecopyresampled.php Edit -- https://master.php.net/note/edit/113009 Del: integrated -- https://master.php.net/note/delete/113009/integrated Del: useless -- https://master.php.net/note/delete/113009/useless Del: bad code -- https://master.php.net/note/delete/113009/bad+code Del: spam -- https://master.php.net/note/delete/113009/spam Del: non-english -- https://master.php.net/note/delete/113009/non-english Del: in docs -- https://master.php.net/note/delete/113009/in+docs Del: other reasons-- https://master.php.net/note/delete/113009 Reject -- https://master.php.net/note/reject/113009 Search -- https://master.php.net/manage/user-notes.php