PHP 生成微信小程序码，并存储图片

1. 获取 Access Token
   注意：access_token 在获取时，要根据自己的业务需求，可以考虑存储到 redis、mysql （7200秒内）
2. 根据小程序 APPID、APPSECRET - 获取不限制的小程序码
   主要请求参数：  page、scene、width
3. 将获得的小程序码，进行位置存储，方便后期查看使用

    /**
     * @Notes:获取 access_token
     * @return bool|string
     * @User: zhanghj
     * @DateTime: 2023-10-16 16:21
     */
    public function getAccessToken(){
        $appid = 'XXXXXXXXXX'; //APPID
        $secret = 'XXXXXXXXXXXXXXXXXXXXXXX'; //APPSECRET
        $urlss = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$appid.'&secret='.$secret;
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $urlss);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($ch);
        curl_close($ch);
        return $output??'';
    }

    /**
     * @Notes:生成 小程序码
     * @param $mini_page_link
     * @param int $img_tag
     * @return string
     * @User: zhanghj
     * @DateTime: 2023-10-16 16:48
     */
    public function generateToMiniCode($mini_page_link,$img_tag = 0){
        $mini_code_img = dirname(\Yii::$app->basePath) . '/backend/web/upload/mini_code/' . $img_tag . '.png';

        $access_token = $this->getAccessToken();
        $tk = json_decode($access_token)->access_token;

        $urlss = 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token='.$tk;
        $ch = curl_init();
        $_pageData = [
            "page"=> $mini_page_link, //例如：pages/home/index
            "scene"=>"device_id={$img_tag}", //参数绑定
            "width" => 120 //宽度
        ];
        $datass = json_encode($_pageData);
        curl_setopt($ch, CURLOPT_URL, $urlss);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $datass);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HEADER, false);
        $output1 = curl_exec($ch);
        curl_close($ch);
        file_put_contents($mini_code_img, $output1, true);
        return $this->imgHost . '/mini_code/' . $img_tag . '.png';
    }

$imgUrl = 'data:image/jpg;base64,'.base64_encode($output1);

header("Content-type: image/jpg;charset=gb2312");
echo $output1;

$url = "test.jpg";
file_put_contents($url, $output1, true);