PHP | /* * A simple implementation - Minus Creative - f6da6c8ec

/*
 * A simple implementation for an 'EXIF' auto-rotate
 * option in Image lib. Uses PHP's built-in EXIF
 * reading capabilities. 'IFDO' is a small subset
 * of the available EXIF data. It might be
 * preferred to read all EXIF data instead, and
 * then pass that information back to the user
 * since it's already being read. Maybe they
 * should be separated, and EXIF should be
 * automagically called if 'EXIF' is passed
 * to rotate.
 *
 * This is really simple and lacks basic checks, I know.
 */

/*
 * Read the EXIF
 */
$image->exif = exif_read_data($file->image_path, 'IFD0');


/*
 * Auto-rotate based on provided EXIF
 */
switch($image->exif['Orientation']) {

        case 1:
                break;

        case 2:
                $image->flip(5);
                break;

        case 3:
                $image->rotate(180);
                break;

        case 4:
                $image->flip(6);
                break;

        case 5:
                $image->rotate(90)->flip(6);
                break;

        case 6:
                $image->rotate(90);
                break;

        case 7:
                $image->rotate(90)->flip(5);
                break;

        case 8:
                $image->rotate(-90);
                break;
}