small bugfixes

Author: CryptAPI

composer.json

@@ -28,5 +28,5 @@
       "CryptAPI\\": "cryptapi/"
     }
   },
-  "version": "1.0.1"
+  "version": "1.1.0"
 }

cryptapi/cryptapi.php

@@ -40,8 +40,11 @@ public function get_address() {
 
         if (empty($this->own_address) || empty($this->coin) || empty($this->callback_url)) return null;
 
-        $req_parameters = http_build_query($this->parameters);
-        $callback_url = "{$this->callback_url}?{$req_parameters}";
+        $callback_url = $this->callback_url;
+        if (!empty($this->parameters)) {
+            $req_parameters = http_build_query($this->parameters);
+            $callback_url = "{$this->callback_url}?{$req_parameters}";
+        }
 
         $ca_params = [
             'callback' => $callback_url,