Merge branch 'hotfix/log-landing-page' into release

Application/Home/Controller/HomeController.class.php

@@ -141,6 +141,7 @@ class HomeController extends Controller
 
     public function landingPage()
     {
+        $testKey = I('test_key', '');
         $code = I('code', '');
         $gameId = I('gid', 0);
         $promoteId = I('pid', 0);
@@ -170,6 +171,16 @@ class HomeController extends Controller
         $isIOS = Request::isIOS();
         $isAndroid = Request::isAndroid();
         $isIOS13 = Request::isIOS13();
+
+        if ($testKey != '') {
+            $tempDataDir = RUNTIME_PATH . 'Data';
+            if(!is_dir($tempDataDir)) {
+                @mkdir($tempDataDir);
+            }
+            $testStr = date('Y-m-d H:i:s') . ' - ' . $testKey . ' - ' . Request::getUserAgent();
+            file_put_contents($tempDataDir . '/langding_page.log', $testStr, FILE_APPEND);
+        }
+
         $columns = [
             'id',
             'sdk_version',