Brief tutorial on the development of third-party management tools for WeChat public accounts on php version

This article tells the development methods of third-party management tools for WeChat public accounts on the PHP version. Share it for your reference, as follows:

Recently, I am fiddling with the API provided by WeChat public platforms, and it is indeed an API to obtain user information.

So there is no way, so you can only obtain it yourself. Filling it in manually can certainly solve the problem. Of course, isn’t programming just to make life easier?

Of course, the idea of ​​remotely crawling WeChat public platform data came naturally, and of course, the first thing I thought of was CURL.

CURL can be submitted remotely. I feel that WeChat is suggesting that we should do something. As long as it is not maliciously brushing the interface, there will be no verification code.

Several main issues:

① The remote login interface is time for the HTTPS protocol.
② The page will jump after login successfully.
③ The returned HTML page can be output directly.

The following shows the specific writing method of a CURL

//Remote login to bind the account on WeChat  public function Curl_login($username,$pwd){
  $config_token = "XiaoDengPHP";
  $pwd = md5($pwd);
  $url = "/cgi-bin/login?lang=zh_CN";
  $postArray = array("username=".$username,"pwd=".$pwd,"imgcode=","f=json");
  $fields = implode("&", $postArray);
  $filedir = $_SERVER['DOCUMENT_ROOT']."/Cookies";
  $cookie_file = $filedir."/";
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1); // means that it is a https protocol submission  curl_setopt($ch, CURLOPT_HEADER, 0); //Do not return to the header part  curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)");
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
  curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file); //Produce cookies and save them in the specified directory  curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); //Return the information obtained by curl_exec() as a file stream instead of directly outputting it.  curl_setopt($ch, CURLOPT_REFERER,"/cgi-bin/login?lang=zh_CN"); //Jump to point  $result = curl_exec($ch);
  return json_decode($result);
  // Close the CURL session  curl_close($ch);
}

The above method is implemented. Remotely log in to the WeChat public platform. The next thing is to turn the account into a developer mode, the same CURL.

Note that this time you should bring cookies instead of producing cookies

The key code is to verify the corresponding server. You need to set up a server connection and a token

public function auth($token)
{
    $data = array(
    $_GET['timestamp'],
    $_GET['nonce'],
    $token);
    $sign = $_GET['signature'];
    sort($data);
    $signature = sha1(implode($data));
    if($signature === $sign){
       echo ($_GET['echostr']);
     exit;
    }else{
     return false;
    }
}

If the activation is successful, it should return a JS=302 json data and a token information certified by the WeChat platform.

As long as you are careful, you will find that TOKEN in the WeChat connection is dynamically changed, but some remain unchanged for a period of time.

So you need this token to construct the URL to get other page information.

But during the development process, you must encounter a very collapsed problem.

For more information about PHP related content, please check out the topic of this site:Summary of PHP WeChat development skills》、《Summary of PHP encoding and transcoding operation techniques》、《Summary of PHP network programming skills》、《Introduction to PHP basic syntax》、《Summary of usage of php strings》、《PHP+mysql database operation tutorial"and"Summary of common database operation techniques for php》

I hope this article will be helpful to everyone's PHP programming.