JBZoo\Image\Filter::border PHP Метод

    public static function border($image, array $params = array())
    {
        $params = array_merge(array('color' => '#333', 'size' => 1), $params);
        $size = Helper::range($params['size'], 1, 1000);
        $rgba = Helper::normalizeColor($params['color']);
        $width = imagesx($image);
        $height = imagesy($image);
        $x1 = 0;
        $y1 = 0;
        $x2 = $width - 1;
        $y2 = $height - 1;
        $color = imagecolorallocatealpha($image, $rgba[0], $rgba[1], $rgba[2], $rgba[3]);
        for ($i = 0; $i < $size; $i++) {
            imagerectangle($image, $x1++, $y1++, $x2--, $y2--, $color);
        }
    }