這是練英語寫作的，中文在下面。

1、Connect Wifi

Before we make a http-get request, connecting Wifi must be done.The demo gave by official website is as Code Block-1. See http://nodemcu.com/index_cn.html

2、PHP Webserver

By using php,we can get the request arguments by _GET['xxx'] directly. Demo is as  Code Block-2.

3、NodeMcu Request

Demo is as Code Block-3. We used the cjson module to parse the Json data returned by php server and iterate over and print  the elements.

4、Chinise Garbled Solution

Since the url of NodeMcu http-get request supports Chinise badly,we can use the Base64 encoded url. For example,  the base64 code of '你好' is '5L2g5aW9Cg==', then the url will be 'login.php?name=5L2g5aW9Cg=='. The php server should decode the data such as the Code Block-4.

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上面是練英語寫作的，歡迎吐槽。中文如下：

1、連線 Wifi

在進行Http 的GET請求前，我們需要連線Wifi.官方給出了一個例子,程式碼如下

連線Wifi程式碼Code Block-1:

print(wifi.sta.getip())
--nil
wifi.setmode(wifi.STATION)
wifi.sta.config("SSID","password")
print(wifi.sta.getip())
--192.168.18.110

2、PHP服務端

PHP服務端通過_GET['xxx']即可獲取到GET請求引數。程式碼如下:

PHP服務端程式碼Code Block-2:

<?php
$user_name = isset($_GET['name'])?$_GET['name']:null;
$user_pwd = isset($_GET['pwd'])?$_GET['pwd']:null;
$message = array(
		"type" => 0,
		"data" => "name:".$user_name." pwd:".$user_pwd
);
echo json_encode($message);	
?>

3、NodeMCU請求

程式碼如下，我們通過cjson模組來解析PHP服務端返回的Json資料並且遍歷輸出。

NodeMcu進行php.get請求程式碼Code Block-2:

http.get("http://192.168.1.106/login.php?name=aa&pwd=11", nil, function(code, data)
    if (code < 0) then
      print("HTTP request failed")
    else
      print(code,data)
      t = cjson.decode(data)
      for k,v in pairs(t) do print(k,v) end
    end
end)

4、中文引數亂碼解決

NodeMCU對GET請求的URL引數中文支援並不好，我們可以使用Base64編碼後的引數。比如說"你好"的base64編碼為 ”5L2g5aW9Cg==“，那麼url則為 “login.php?name=5L2g5aW9Cg==”，PHP服務端對base64引數的解析程式碼如下：

PHP解析base64編碼引數Code Block-4:

if(preg_match("/==$/", $user_name)){
	$user_name=base64_decode($user_name);
}