Cloudinary::encode_assoc_array PHP Method

    public static function encode_assoc_array($array)
    {
        if (Cloudinary::is_assoc($array)) {
            $encoded = array();
            foreach ($array as $key => $value) {
                array_push($encoded, $key . '=' . $value);
            }
            return implode("|", $encoded);
        } else {
            return $array;
        }
    }

 public static function build_upload_params(&$options)
 {
     $params = array("timestamp" => time(), "allowed_formats" => \Cloudinary::encode_array(\Cloudinary::option_get($options, "allowed_formats")), "auto_tagging" => \Cloudinary::option_get($options, "auto_tagging"), "background_removal" => \Cloudinary::option_get($options, "background_removal"), "backup" => \Cloudinary::option_get($options, "backup"), "callback" => \Cloudinary::option_get($options, "callback"), "categorization" => \Cloudinary::option_get($options, "categorization"), "colors" => \Cloudinary::option_get($options, "colors"), "context" => \Cloudinary::encode_assoc_array(\Cloudinary::option_get($options, "context")), "custom_coordinates" => \Cloudinary::encode_double_array(\Cloudinary::option_get($options, "custom_coordinates")), "detection" => \Cloudinary::option_get($options, "detection"), "discard_original_filename" => \Cloudinary::option_get($options, "discard_original_filename"), "eager" => Uploader::build_eager(\Cloudinary::option_get($options, "eager")), "eager_async" => \Cloudinary::option_get($options, "eager_async"), "eager_notification_url" => \Cloudinary::option_get($options, "eager_notification_url"), "exif" => \Cloudinary::option_get($options, "exif"), "face_coordinates" => \Cloudinary::encode_double_array(\Cloudinary::option_get($options, "face_coordinates")), "faces" => \Cloudinary::option_get($options, "faces"), "folder" => \Cloudinary::option_get($options, "folder"), "format" => \Cloudinary::option_get($options, "format"), "headers" => Uploader::build_custom_headers(\Cloudinary::option_get($options, "headers")), "image_metadata" => \Cloudinary::option_get($options, "image_metadata"), "invalidate" => \Cloudinary::option_get($options, "invalidate"), "moderation" => \Cloudinary::option_get($options, "moderation"), "notification_url" => \Cloudinary::option_get($options, "notification_url"), "ocr" => \Cloudinary::option_get($options, "ocr"), "overwrite" => \Cloudinary::option_get($options, "overwrite"), "phash" => \Cloudinary::option_get($options, "phash"), "proxy" => \Cloudinary::option_get($options, "proxy"), "public_id" => \Cloudinary::option_get($options, "public_id"), "raw_convert" => \Cloudinary::option_get($options, "raw_convert"), "return_delete_token" => \Cloudinary::option_get($options, "return_delete_token"), "similarity_search" => \Cloudinary::option_get($options, "similarity_search"), "tags" => implode(",", \Cloudinary::build_array(\Cloudinary::option_get($options, "tags"))), "transformation" => \Cloudinary::generate_transformation_string($options), "type" => \Cloudinary::option_get($options, "type"), "unique_filename" => \Cloudinary::option_get($options, "unique_filename"), "upload_preset" => \Cloudinary::option_get($options, "upload_preset"), "use_filename" => \Cloudinary::option_get($options, "use_filename"), "responsive_breakpoints" => Uploader::build_responsive_breakpoints(\Cloudinary::option_get($options, "responsive_breakpoints")));
     array_walk($params, function (&$value, $key) {
         $value = is_bool($value) ? $value ? "1" : "0" : $value;
     });
     return array_filter($params, function ($v) {
         return !is_null($v) && $v !== "";
     });
 }