diff --git a/app/gateway/service/AuthService.php b/app/gateway/service/AuthService.php
index 5c4f051..c06f602 100644
--- a/app/gateway/service/AuthService.php
+++ b/app/gateway/service/AuthService.php
@@ -34,12 +34,12 @@ class AuthService
     {
         if ($sign_type == 2) {
             $type = 'md5';
-            $request['token'] = isset($request['token']) ? $request['token'] : $token;
+            $request['token'] = $request['token'] ?? $token;
         } else {
             $type = 'sha1';
-            $request['time'] = isset($request['time']) ? $request['time'] : self::timestamp();
-            $request['nonce'] = isset($request['nonce']) ? $request['nonce'] : self::nonce();
-            $request['token'] = isset($request['token']) ? $request['token'] : self::token($token);
+            $request['time'] = $request['time'] ?? self::timestamp();
+            $request['nonce'] = $request['nonce'] ?? self::nonce();
+            $request['token'] = $request['token'] ?? self::token($token);
         }
         if(isset($request['version'])){
             $request['sign'] = self::signature($request, $type);