route

public/.htaccess

@@ -4,5 +4,9 @@
 
   RewriteCond %{REQUEST_FILENAME} !-d
   RewriteCond %{REQUEST_FILENAME} !-f
-  RewriteRule ^(.*)$ index.php/$1 [QSA,PT,L]
+  RewriteRule ^(.*)$ index.php?/$1 [QSA,PT]
+
+  RewriteCond %{HTTP_USER_AGENT} Mobile* [NC]
+  RewriteRule index.php mobile.php/$1 [QSA,PT,L]
+
 </IfModule>

public/mobile.php

@@ -0,0 +1,9 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Wind
+ * Date: 2017/10/30
+ * Time: 15:37
+ */
+echo 'mobile';
+die;