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WeChat scan code login registration implementation, WeChat scan login Registration

Source: Internet
Author: User
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Scan the QR code to register and scan the logon register.

Scan-code logon is the most popular and convenient logon method. Here I use the public number to demonstrate the QR code logon process.

Required information:

1. AppId and AppSecret of the Public Account

2. Get access_toke with the Public Account

Public function getToken (){

$ Access_token = S ("gzh_access_token ");
If (! $ Access_token ){
$ Appid = C ('appid ');
$ Secret = C ('appsecret );
$ Url = "https://api.weixin.qq.com/cgi-bin/token? Grant_type = client_credential & appid = ". $ appid." & secret = ". $ secret;
$ Token = json_decode (curl_request ($ url, "get"), 1 );

S ("gzh_access_token", $ token ["access_token"], 7100 );
$ Access_token = S ("gzh_access_token ");
}

Return $ access_token;
}

3. Get the temporary QR code

Public function getcode ($ access_token, $ str ){

// Query whether the string is unique
$ Model = D ("merchant ");
$ Res = $ model-> where ("str = '". $ str. "'")-> find ();

$ Str = $ this-> parameter ();

If ($ res ){
$ This-> getcode ($ access_token );
} Else {
// Generate a temporary QR code with Parameters
$ Url = "https://api.weixin.qq.com/cgi-bin/qrcode/create? Access_token = ". $ access_token;
$ Data ["expire_seconds"] = 7200;
$ Data ["action_name"] = "QR_STR_SCENE ";
$ Data ["action_info"] ["scene"] ["scene_str"] = $ str;

$ Ticket = json_decode (curl_request ($ url, "post", json_encode ($ data), 1 );

$ Qrcoderul = "https://mp.weixin.qq.com/cgi-bin/showqrcode? Ticket = ". $ ticket [" ticket "];
$ Qrcode = curl_request ($ qrcoderul, "get ");

Return $ qrcode;
}
}

// QR code Parameters
Public function parameter (){
$ Str = $ _ SESSION ["str"];
If (strlen ($ str) <5 ){
// Generate a random string
$ Str = md5 (rand (0,999999). "qiao.16166.org ");
$ _ SESSION ["str"] = $ str;
}

Return $ str;
}

Front-end code:

<Body style = "margin: 0px; padding: 0px">
<Div style = "width: 100%; height: 100vl; background-image: url ('https: // public.16166.org/Skin/items/qbl/qbl.jpg'); background-repeat: no-repeat; background-size: 100% 100%; overflow: hidden ">
<Div style = "background-color: white; margin-left: auto; margin-right: auto; width: 300px; height: auto; margin-top: 13vl; padding-top: 25px; padding-bottom: 25px; border-radius: 6px ">
<P style = "margin: 0px; text-align: center"> <strong> scan the QR code for Logon </strong> </p>
<Div style = "width: 300px; text-align: center; margin-top: 10px; margin-bottom: 10px">
{$ Img}
</Div>
<P id = "strstate" style = "margin: 0px; text-align: center; font-size: smaller"> use a scan to log on or register </p>
</Div>
<Input type = "hidden" id = "str" value = "{$ str}"/>
</Div>

<Script type = "text/javascript">
$ (Function (){
Checklogin ();
});

Function checklogin (){
Var url = "{: U ('sjmanager/Login/checklogin ')}";
Varstr = $ ("# str"). val ();
VarpostData = "str =" + str;
$. Post (url, postData, function (jsons ){
Console. log (jsons );
If (jsons. state = "login "){
$ ("# Strstate" Login .html ("Login successful, please wait ...");
SetTimeout (function (){
Window. location = "{: U ('Merchant/index/Index ')}";
},3000 );
}

If (jsons. state = "register "){
$ ("# Strstate" ).html ("Scan successful, please wait ...");
SetTimeout (function (){
Window. location = "{: U ('sjmanager/Login/register ')}";
},3000 );
}

If (jsons. state = "no "){
$ ("# Strstate" ).html ("Scan successful ");
SetTimeout (function (){
Alert ("your information has not been approved. Please contact the Administrator ");
},3000 );
}

Else {
SetTimeout (function (){
Checklogin ();
},10000 );
}
}, 'Json ');
}
</Script>
</Body>

 

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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