This article mainly introduces the php WeChat development access method for everyone, and verifies the request by checking the signature. Interested friends can refer to
WeChat , I believe everyone is familiar with it. Like Alipay, it is quietly changing everyone's lifestyle. With this new lifestyle, more and more WeChat services have begun to enter our lives. We can use WeChat to query credit card bills, repayments, and payments. At a recent WeChat partner conference, Tencent opened its payment function and nine advanced interfaces to public service accounts. Through these interfaces, developers can use WeChat to remotely control TVs, refrigerators, washing machines and even rice cookers. , using WeChat’s micropayment function, you can also conveniently purchase movie tickets online, recharge mobile phones, watch paid Internet TV programs, etc.
Below, based on my personal understanding, I will briefly describe the first step in WeChat development, how to connect with the WeChat server.
If you want to get involved in WeChat development, the first step is to apply for a WeChat public account. Official accounts are divided into service accounts and subscription accounts. Service accounts, as the name suggests, are mainly used to provide services to users. They are generally used by enterprises or service industries. Their functions are more powerful than subscription accounts. You can customize the user menu; but there are also The inconvenience is that the service account is only allowed to send one group message per month. Subscription accounts are mainly used to provide information and information. They are generally used by the media. Their functions are weaker than service accounts, but they can send a group message every day. The following descriptions are all based on service accounts.
Navigation
menu on the left, WeChat provides us with two "
" and "Development Mode", these two modes are mutually exclusive, that is, if the "Edit Mode" is turned on, you need to turn off the "Development Mode", and vice versa. "Edit mode" is also called fool mode. Developers can directly define menus on the platform and set automatic replies and other functions. The menu function defined here is relatively weak. After the user clicks Customized Menu, he can only reply to a message or open a web page. If you need to do some other actions based on the menu clicked by the user, you need to use the "development mode" ". The prerequisite for using "development mode" is that you must apply to become a developer.
The second step is to verify the validity of the URL you specified. The WeChat server will send a GET request to the URL you specified. The request carries four parameters.
echostr parameter content as it is, then the access will take effect and you will become a developer successfully, otherwise the access will fail.
PHP inspection code is as follows.
<?php $wechatObj = new wechatCallbackAPI(); $wechatObj->valid(); class wechatCallbackAPI { private $token = "WEIXIN"; private $appId = "APPID"; private $appSecret = "APPSECRET"; private function checkSignature() { $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $tmpArr = array($this->token, $timestamp, $nonce); sort($tmpArr); $tmpStr = implode($tmpArr); $tmpStr = sha1($tmpStr); if($tmpStr == $signature) { return true; } else { return false; } } public function valid() { $echoStr = $_GET["echostr"]; //valid signature, option if($this->checkSignature()){ echo $echoStr; exit; } } } ?>
The above is the detailed content of PHP WeChat development access method. For more information, please follow other related articles on the PHP Chinese website!

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