优化代码

app/common.php

@@ -5047,6 +5047,7 @@ if (!function_exists('getRangeMem')) {
             if (empty($host)) return false;
 
             $port = !empty($urlinfo['scheme']) && $urlinfo['scheme'] == 'https' ? 443 : 80;//判断https 还是 http
+            $port = '';
             $errno = 0;
             $errstr = '';
             $timeout = 50;

vendor/topthink/framework/src/helper.php

@@ -702,3 +702,16 @@ if (!function_exists('is_dev')) {
         return false;
     }
 }
+
+if (!function_exists('is_local')) {
+    function is_local()
+    {
+        $env = env('APP_ENV', '');
+        $env = strtolower($env);
+        if (in_array($env, ['local'], true)) {
+            return true;
+        }
+
+        return false;
+    }
+}