diff --git a/README.md b/README.md
index 119352b..44411a1 100644
--- a/README.md
+++ b/README.md
@@ -6,15 +6,18 @@ Socks5 proxy written in PHP based on [workerman](https://github.com/walkor/Worke
 
 2. ```composer install```
 
+## Config
+Edit file ```config.php```
+
 ## Start
-php start.php start -d
+```php start.php start -d```
 
 ## Stop
-php start.php stop
+```php start.php stop```
 
 ## Status
-php start.php status
+```php start.php status```
 
-## Other links 
-https://github.com/walkor/shadowsocks-php  
+## Other links
+https://github.com/walkor/shadowsocks-php
 https://github.com/walkor/php-http-proxy
diff --git a/config.php b/config.php
index 540540a..8f9188b 100644
--- a/config.php
+++ b/config.php
@@ -1,3 +1,5 @@
+<?php
+
 $AUTH_ENABLED = 0;
 $USERNAME = 'changeme';
 $PASSWORD = '1234';
diff --git a/start.php b/start.php
index e810232..dcf9db2 100644
--- a/start.php
+++ b/start.php
@@ -6,7 +6,6 @@ use \Workerman\Connection\AsyncTcpConnection;
 
 // 自动加载类
 require_once __DIR__ . '/vendor/autoload.php';
-
 require_once __DIR__ . '/config.php';
 
 define('STAGE_INIT', 0);
@@ -37,6 +36,7 @@ $worker->onConnect = function($connection)
 };
 $worker->onMessage = function($connection, $buffer)
 {
+    global $AUTH_ENABLED, $USERNAME, $PASSWORD;
     switch($connection->stage)
     {
         case STAGE_INIT: