Cloudinary::cloudinary_url PHP 메소드

    public static function cloudinary_url($source, &$options = array())
    {
        $source = self::check_cloudinary_field($source, $options);
        $type = Cloudinary::option_consume($options, "type", "upload");
        if ($type == "fetch" && !isset($options["fetch_format"])) {
            $options["fetch_format"] = Cloudinary::option_consume($options, "format");
        }
        $transformation = Cloudinary::generate_transformation_string($options);
        $resource_type = Cloudinary::option_consume($options, "resource_type", "image");
        $version = Cloudinary::option_consume($options, "version");
        $format = Cloudinary::option_consume($options, "format");
        $cloud_name = Cloudinary::option_consume($options, "cloud_name", Cloudinary::config_get("cloud_name"));
        if (!$cloud_name) {
            throw new InvalidArgumentException("Must supply cloud_name in tag or in configuration");
        }
        $secure = Cloudinary::option_consume($options, "secure", Cloudinary::config_get("secure"));
        $private_cdn = Cloudinary::option_consume($options, "private_cdn", Cloudinary::config_get("private_cdn"));
        $secure_distribution = Cloudinary::option_consume($options, "secure_distribution", Cloudinary::config_get("secure_distribution"));
        $cdn_subdomain = Cloudinary::option_consume($options, "cdn_subdomain", Cloudinary::config_get("cdn_subdomain"));
        $secure_cdn_subdomain = Cloudinary::option_consume($options, "secure_cdn_subdomain", Cloudinary::config_get("secure_cdn_subdomain"));
        $cname = Cloudinary::option_consume($options, "cname", Cloudinary::config_get("cname"));
        $shorten = Cloudinary::option_consume($options, "shorten", Cloudinary::config_get("shorten"));
        $sign_url = Cloudinary::option_consume($options, "sign_url", Cloudinary::config_get("sign_url"));
        $api_secret = Cloudinary::option_consume($options, "api_secret", Cloudinary::config_get("api_secret"));
        $url_suffix = Cloudinary::option_consume($options, "url_suffix", Cloudinary::config_get("url_suffix"));
        $use_root_path = Cloudinary::option_consume($options, "use_root_path", Cloudinary::config_get("use_root_path"));
        if (!$private_cdn and !empty($url_suffix)) {
            throw new InvalidArgumentException("URL Suffix only supported in private CDN");
        }
        if (!$source) {
            return $source;
        }
        if (preg_match("/^https?:\\//i", $source)) {
            if ($type == "upload") {
                return $source;
            }
        }
        $resource_type_and_type = Cloudinary::finalize_resource_type($resource_type, $type, $url_suffix, $use_root_path, $shorten);
        $sources = Cloudinary::finalize_source($source, $format, $url_suffix);
        $source = $sources["source"];
        $source_to_sign = $sources["source_to_sign"];
        if (strpos($source_to_sign, "/") && !preg_match("/^https?:\\//", $source_to_sign) && !preg_match("/^v[0-9]+/", $source_to_sign) && empty($version)) {
            $version = "1";
        }
        $version = $version ? "v" . $version : NULL;
        $signature = NULL;
        if ($sign_url) {
            $to_sign = implode("/", array_filter(array($transformation, $source_to_sign)));
            $signature = str_replace(array('+', '/', '='), array('-', '_', ''), base64_encode(sha1($to_sign . $api_secret, TRUE)));
            $signature = 's--' . substr($signature, 0, 8) . '--';
        }
        $prefix = Cloudinary::unsigned_download_url_prefix($source, $cloud_name, $private_cdn, $cdn_subdomain, $secure_cdn_subdomain, $cname, $secure, $secure_distribution);
        return preg_replace("/([^:])\\/+/", "\$1/", implode("/", array_filter(array($prefix, $resource_type_and_type, $signature, $transformation, $version, $source))));
    }

 public function SetImageSize($width, $height, $crop = 'fill', $gravity = 'faces')
 {
     CloudinaryFile::get_api();
     $options = array('width' => $width, 'height' => $height, 'crop' => $crop, 'quality' => 70, 'gravity' => $gravity, 'secure_distribution' => true, 'secure' => true);
     $cloudinaryID = CloudinaryFile::get_public_id($this->CloudinaryURL);
     return Cloudinary::cloudinary_url($cloudinaryID . '.' . $this->Format, $options);
 }