第五节 生成微信二维码

微信的票据
1.全局票据access_token
2.网页授权access_token
3.微信js-SDK
4.jsapi_ticket

一.获取创建二维码的ticket

//获取创建二维码的ticket    public function get_ticket(){           $token = new Wechat_menu_api(appID,appsecret);        $access_token = $token->get_access_token();         $url='https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token='.$access_token;        $data = array(            'expire_seconds' => 25920,            'action_name' => 'QR_SCENE',            'action_info' =>                array ('scene' =>                     array (                        'scene_id' => 1000                    )                )            );        $data = json_encode($data);        $ch = curl_init();        curl_setopt($ch,CURLOPT_URL,$url);        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);        curl_setopt($ch,CURLOPT_POST,1);        curl_setopt($ch,CURLOPT_POSTFIELDS,$data);        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);        $out  = curl_exec($ch);        if(curl_errno($ch)){            echo 'Curl error: ' . curl_error($ch);        }        curl_close($ch);        $out = json_decode($out,true);        return $out;    }

二.获取二维码图片

//获取二维码图片    public function get_code(){        header('content-type: image/jpeg;charset=utf-8');        $arr = $this->get_ticket();        $ticket = urlencode($arr['ticket']);        $url = 'https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket='.$ticket;        $ch = curl_init();        curl_setopt($ch,CURLOPT_URL,$url);        curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,0);        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,0);        $out = curl_exec($ch);        if(curl_errno($ch)){            echo 'Curl error: ' . curl_error($ch);        }        curl_close($ch);        echo $out;    }