Use built-in PHP function to extract query from URL, add changelog entry

Author: noplanman

CHANGELOG.md

@@ -7,6 +7,7 @@ Exclamation symbols (:exclamation:) note something of importance e.g. breaking c
 ### Notes
 - [:ledger: View file changes][Unreleased]
 ### Added
+- Allow webhook to contain custom query parameters.
 ### Changed
 ### Deprecated
 ### Removed

src/BotManager.php

@@ -236,7 +236,8 @@ public function validateAndSetWebhook(): self
                 }
                 return !empty($v);
             }, ARRAY_FILTER_USE_BOTH);
-            $webhook['url'] .= ( isset(parse_url($webhook['url'])['query'])) ? '&' : '?' ;
+
+            $webhook['url'] .= parse_url($webhook['url'], PHP_URL_QUERY) === null ? '?' : '&';
             $this->handleOutput(
                 $this->telegram->setWebhook(
                     $webhook['url'] . 'a=handle&s=' . $this->params->getBotParam('secret'),