PHP学习:使用微信接口实现二维码的生成

    作者:在线学习平台更新于: 2015-07-02 11:22:50

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    今天给大家带来一个实用比较强的编程入门教程,现在微信的普及度相当的高,而二维码对于渠道的营销推广的用处是非常大,现二维码分为两种:临时二维码、永久二维码,下面就来研究学习一下吧,现在可以通过微信接口实现二维码的生成。
    使用微信接口实现二维码的生成
    废话不多讲,现在就让我们一起学习PHP,代码如下:
          ?
      /**
      * Created by PhpStorm.
      * User: bin
      * Date: 15-1-16
      * Time: 上午9:48
      */
      namespace HomeCommon;
      // 微信处理类
      set_time_limit(30);
      class Weixin{
      //构造方法
      static $qrcode_url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?";
      static $token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&";
      static $qrcode_get_url = "https://mp.weixin.qq.com/cgi-bin/showqrcode?";
      //生成二维码
      public function getEwm($wechatid,$fqid,$type = 1){
      $wechat = M('Member_public')->where(array('id'=> $wechatid))->find();
      $appid = $wechat['appid'];
      $secret = $wechat['secret'];
      $ACCESS_TOKEN = $this->getToken($appid,$secret);
      $url = $this->getQrcodeurl($ACCESS_TOKEN,$fqid,1);
      return DownLoadQr($url,time());
      }
      protected function getQrcodeurl($ACCESS_TOKEN,$fqid,$type = 1){
      $url = self::$qrcode_url.'access_token='.$ACCESS_TOKEN;
      if($type == 1){
      //生成永久二维码
      $qrcode= '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": '.$fqid.'}}}';
      }else{
      //生成临时二维码
      $qrcode = '{"expire_seconds": 1800, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": '.$fqid.'}}}';
      }
      $result = $this->http_post_data($url,$qrcode);
      $oo = json_decode($result[1]);
      if(!$oo->ticket){
      $this->ErrorLogger('getQrcodeurl falied. Error Info: getQrcodeurl get failed');
      exit();
      }
      $url = self::$qrcode_get_url.'ticket='.$oo->ticket.'';
      return $url;
      }
      protected function getToken($appid,$secret){
      $ACCESS_TOKEN = file_get_contents(self::$token_url."appid=$appid&secret=$secret");
      $ACCESS_TOKEN = json_decode($ACCESS_TOKEN);
      $ACCESS_TOKEN = $ACCESS_TOKEN->access_token;
      return $ACCESS_TOKEN;
      }
      protected function http_post_data($url, $data_string) {
      $ch = curl_init();
      curl_setopt($ch, CURLOPT_POST, 1);
      curl_setopt($ch, CURLOPT_URL, $url);
      curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
      curl_setopt($ch, CURLOPT_HTTPHEADER, array(
      'Content-Type: application/json; charset=utf-8',
      'Content-Length: ' . strlen($data_string))
      );
      ob_start();
      curl_exec($ch);
      if (curl_errno($ch)) {
      $this->ErrorLogger('curl falied. Error Info: '.curl_error($ch));
      }
      $return_content = ob_get_contents();
      ob_end_clean();
      $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
      return array($return_code, $return_content);
      }
      //下载二维码到服务器
      protected function DownLoadQr($url,$filestring){
      if($url == ""){
      return false;
      }
      $filename = $filestring.'.jpg';
      ob_start();
      readfile($url);
      $img=ob_get_contents();
      ob_end_clean();
      $size=strlen($img);
      $fp2=fopen('./Uploads/qrcode/'.$filename,"a");
      if(fwrite($fp2,$img) === false){
      $this->ErrorLogger('dolwload image falied. Error Info: 无法写入图片');
      exit();
      }
      fclose($fp2);
      return './Uploads/qrcode/'.$filename;
      }
      private function ErrorLogger($errMsg){
      $logger = fopen('./ErrorLog.txt', 'a+');
      fwrite($logger, date('Y-m-d H:i:s')." Error Info : ".$errMsg."rn");
      }
      }

     
    好了,以上就是这次编程入门教程中关于PHP微信开发之使用微信接口实现二维码生成的PHP学习,如需学习更多PHP开发相关的视频课程可以登录课课家网络学习平台
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