Pull request #5: TSMD-22523

Merge in SDK/php_telesign from feature/TSMD-22523_upgrade to master

* commit 'ded2f384db2ba8b8380921779226f5e9a5441607':
  TSMD-22523

Author: Dragoslav Predojevic

src/rest/RestClient.php

@@ -207,7 +207,7 @@ function delete (...$args) {
    * @return \telesign\sdk\rest\Response The RestClient Response object
    */
   protected function execute ($method_name, $resource, $fields = [], $date = null, $nonce = null) {
-    $url_encoded_fields = http_build_query($fields, null, "&");
+    $url_encoded_fields = http_build_query($fields, "", "&");
 
     $headers = $this->generateTelesignHeaders(
       $this->customer_id,