php 通过扫描二维码关注公众号

class Wxfollow

{

    protected $appid = 'wxf1d959b99f33b156';

    protected $secret = '248f3a560604555ec96215c085cb2723';

    protected $url = "";

    protected $access_tokens = "";

   　public function __construct()

    {

        //获取$access_token

        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $this->appid . "&secret=" . $this->secret . "";

        $result = curl_post($url);

        $access_tokens = json_decode($result, true);

        $this->access_tokens = $access_tokens['access_token'];

    }

    public function Follow(){

        //非必传项

        $rs = $this->getTemporaryQrcode($this->access_tokens, 123);

        $ticket = $rs['ticket'];

        $qrcode = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=" . $ticket . "";

        ///打印二维码显示

        jumpUrl($qrcode);

    }

　　　　//生成二维码

    public function getTemporaryQrcode($access_tokens,$orderId)

    {

        $url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=" .$access_tokens . "";

　　　　　　　　//生成二维码需要的参数

        $qrcode = '{"expire_seconds": 1800, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": ' . $orderId . '}}}';

        $momo = json_decode($qrcode, true);

        $result = curl_post($url, $momo);

        $rs = json_decode($result, true);

        return $rs;

    }

　　　function curl_post($url, array $params = array())

　　　{

    $data_string = json_encode($params);

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_HEADER, 0);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);

    curl_setopt($ch, CURLOPT_POST, 1);

    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);

    curl_setopt($ch, CURLOPT_HTTPHEADER,

        array(

            'Content-Type: application/json'

        )

    );

    $data = curl_exec($ch);

    curl_close($ch);

    return ($data);

　　}

}