生成临时二维码

public function getTimeQrcode(){
    //1、获取ticket票据
    $access_token = $this->get_access_token();
    $url="https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=$access_token";
    $array = array(
        "expire_seconds" => 604800,//24*60*60*7 七天有效期
        "action_name"=>"QR_SCENE",
        "action_info"=>array(
            "scene"=>array(
                "scene_id"=>2000//二维码附带的参数
            )
        )
    );
    $postJson = json_encode($array);
    $res = $this->http_curl($url,"post","json",$postJson);
    $ticket = $res['ticket'];
    $url="https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=".urlencode($ticket);
    echo "<img src=".$url.">";
}

生成永久二维码

public function getForeverQrcode(){
    //1、获取ticket票据
    $access_token = $this->get_access_token();
    $url="https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=$access_token";
    $array = array(
        "action_name"=>"QR_SCENE",
        "action_info"=>array(
            "scene"=>array(
                "scene_id"=>3000//二维码附带的参数
            )
        )
    );
    $postJson = json_encode($array);
    $res = $this->http_curl($url,"post","json",$postJson);
    $ticket = $res['ticket'];
    $url="https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=".urlencode($ticket);
    echo "<img src=".$url.">";
}