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WeChat applet PHP generates QR code with parameters

高洛峰

Feb 25, 2017 am 09:49 AM

WeChat Mini Program PHP generates QR code with parameters

Official Get Mini Program Page API

WeChat applet PHP generates QR code with parameters

Due to the limited help provided by the mini program parameter QR code API, the following is some of my understanding of this function

I mainly implement it through the thinkphp background interface, the code is as follows:

1. Get ACCESS_TOKEN first:

$tokenUrl="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->appid."&secret=".$this->secret;
    $getArr=array();
    $tokenArr=json_decode($this->send_post($tokenUrl,$getArr,"GET"));
    $access_token=$tokenArr->access_token;

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send_post:

function send_post($url, $post_data,$method=&#39;POST&#39;) {
    $postdata = http_build_query($post_data);
    $options = array(
      &#39;http&#39; => array(
        &#39;method&#39; => $method, //or GET
        &#39;header&#39; => &#39;Content-type:application/x-www-form-urlencoded&#39;,
        &#39;content&#39; => $postdata,
        &#39;timeout&#39; => 15 * 60 // 超时时间（单位:s）
      )
    );
    $context = stream_context_create($options);
    $result = file_get_contents($url, false, $context);
    return $result;
  }

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2 , Generate QR code:

$path="pages/index?query=1";
    $width=430;
    $post_data=&#39;{"path":"&#39;.$path.&#39;","width":&#39;.$width.&#39;}&#39;;
    $url="https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=".$access_token;
    $result=$this->api_notice_increment($url,$post_data);

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api_notice_increment:

function api_notice_increment($url, $data){
    $ch = curl_init();
    $header = "Accept-Charset: utf-8";
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_USERAGENT, &#39;Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)&#39;);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $tmpInfo = curl_exec($ch);
    //     var_dump($tmpInfo);
    //    exit;
    if (curl_errno($ch)) {
      return false;
    }else{
      // var_dump($tmpInfo);
      return $tmpInfo;
    }
  }

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3. According to the return Generate images from binary data and upload them to your own server

Main code:

file_put_contents($filepath, $result)

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Upload service part of the code will not be posted! Thanks for reading, I hope this helps everyone, and thank you for your support of this site!

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