How to generate Mini Program QR Code with parameters by WeChat Mini Programs

WeChat Mini Programs how to generate Mini Program QR code with parameters, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail, people with this need can come to learn, I hope you can get something.

Officially, there are two ways to generate mini codes: https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/qr-code.html

Https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/qr-code/wxacode.getUnlimited.html

The server generates mini code

/ / small program code public function getWxcode () {$ACCESS_TOKEN = $this- > getWxAccessToken (); $url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=". $ACCESS_TOKEN ['access_token']; $post_data = array (' page' = > 'pages/my/my', / / scan Code Jump Page' scene' = > input ('invite_code') / / user invitation code); $post_data = json_encode ($post_data); $data = $this- > send_post ($url, $post_data) $result = $this- > data_uri ($data, 'image/png'); return''; / / return $result;} private function getWxAccessToken () {$appid ='*'; $appsecret ='*'; $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=". $appid. & secret=. $appsecret; $access_token = $this- > makeRequest ($url); $access_token = json_decode ($access_token ['result'], true); return $access_token } / * initiate a http request * @ param string $url access path * @ param array $params parameter, which has more than one array, indicating that the address returned for POST * @ param int $expire request timeout * @ param array $extend request forged packet header parameter * @ param string $hostIp HOST * @ return array is a request status A content * / private function makeRequest ($url, $params = array (), $expire = 0, $extend = array (), $hostIp =') {if (empty ($url)) {return array ('code' = >' 100') } $_ curl = curl_init (); $_ header = array ('Accept-Language: zh-CN',' Connection: Keep-Alive', 'Cache-Control: no-cache'); / / facilitate direct access to the address if (! empty ($hostIp)) where the host is to be set) {$urlInfo = parse_url ($url) If (empty ($urlInfo ['host'])) {$urlInfo [' host'] = substr (DOMAIN, 7,-1); $url = "http://{$hostIp}{$url}";} else {$url = str_replace ($urlInfo ['host'], $hostIp, $url);} $header [] =" Host: {$urlInfo [' host']} " } / / as long as the second parameter passes a value, it is POST's if (! empty ($params)) {curl_setopt ($_ curl, CURLOPT_POSTFIELDS, http_build_query ($params)); curl_setopt ($_ curl, CURLOPT_POST, true);} if (substr ($url, 0,8) = 'https://') {curl_setopt ($_ curl, CURLOPT_SSL_VERIFYPEER, FALSE)) Curl_setopt ($_ curl, CURLOPT_SSL_VERIFYHOST, FALSE);} curl_setopt ($_ curl, CURLOPT_URL, $url); curl_setopt ($_ curl, CURLOPT_RETURNTRANSFER, true); curl_setopt ($_ curl, CURLOPT_USERAGENT, 'API PHP CURL'); curl_setopt ($_ curl, CURLOPT_HTTPHEADER, $_ header); if ($expire > 0) {curl_setopt ($_ curl, CURLOPT_TIMEOUT, $expire) / / processing timeout curl_setopt ($_ curl, CURLOPT_CONNECTTIMEOUT, $expire); / / establishing connection timeout} / / additional configuration if (! empty ($extend)) {curl_setopt_array ($_ curl, $extend);} $result ['result'] = curl_exec ($_ curl); $result [' code'] = curl_getinfo ($_ curl, CURLINFO_HTTP_CODE) $result ['info'] = curl_getinfo ($_ curl); if ($result [' result'] = false) {$result ['result'] = curl_error ($_ curl); $result [' code'] =-curl_errno ($_ curl);} curl_close ($_ curl); return $result } / * message push http * @ param $url * @ param $post_data * @ return bool | string * / private function send_post ($url, $post_data) {$options = array ('http' = > array (' method' = > POST', 'header' = >' Content-type:application/json', / / header needs to be set to JSON 'content' = > $post_data 'timeout' = > 60 / / timeout)) $context = stream_context_create ($options); $result = file_get_contents ($url, false, $context); return $result;} / / binary transfer image/pngprivate function data_uri ($contents, $mime) {$base64 = base64_encode ($contents); return (_ 'data:'. $mime. '; base64,'. $base64);} is it helpful for you to read the above content? If you want to know more about the relevant knowledge or read more related articles, please follow the industry information channel, thank you for your support.