PHP抖音去水印

<?php
//使用方法 域名/dyapi.php?url=https://v.douyin.com/TudRFh/
    $url = $_GET['url'];
    $res = qqxz_http_get($url);
    preg_match('/href="(.*?)">Found/', $res, $matches);
    preg_match('/itemId: "(.*?)",/', qqxz_http_get(str_replace('&', '&', $matches[1])), $matches);
    $arr = json_decode(qqxz_http_get('https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?item_ids='. $matches[1]), true);
    preg_match('/href="(.*?)">Found/', qqxz_http_get(str_replace('playwm', 'play', $arr['item_list'][0]["video"]["play_addr"]["url_list"][0])), $matches);
    $videoUrl = str_replace('&', '&', $matches[1]);
    echo $videoUrl;
function qqxz_http_get($url)
    {
        $Header=array( "User-Agent:Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1");
        $con=curl_init((string)$url);
        curl_setopt($con,CURLOPT_HEADER,False);
        curl_setopt($con,CURLOPT_SSL_VERIFYPEER,False);
        curl_setopt($con,CURLOPT_RETURNTRANSFER,true);
        curl_setopt($con,CURLOPT_HTTPHEADER,$Header);
        curl_setopt($con,CURLOPT_TIMEOUT,5000);
        $result = curl_exec($con);
        return $result;
    }
?>