A

config/config.php

@@ -17,9 +17,9 @@ return [
     ],
 
     'wechat_pay' => [
-        'app_id' => 'wx6131f74e623bf6bf',
-        'mch_id' => '1398823402',
-        'key' => 'c1891122765718911227657189112276',
+        'app_id' => env('WECHAT_APPID','wx6131f74e623bf6bf'),
+        'mch_id' => env('WECHAT_MCHID','1398823402'),
+        'key' =>  env('WECHAT_KEY','c1891122765718911227657189112276'),
         'notify_url' => env('API_HOST', '').'/api/v1/payCallback/wechatPayNotify'
     ],