原理如下：

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<?php /* Author 5G云源碼分享網 DateTime 2019-12-26 */function GetVideos($url) {$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);curl_setopt($ch, CURLOPT_HTTPHEADER, ["user-agent: Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25"]);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false); $output = curl_exec($ch);curl_close($ch);return $output; }function GetUrl($url) {$UserAgent = 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.0.04506; .NET CLR 3.5.21022; .NET CLR 1.0.3705; .NET CLR 1.1.4322)';$curl = curl_init();curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_HEADER, 0);curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);curl_setopt($curl, CURLOPT_ENCODING, '');curl_setopt($curl, CURLOPT_USERAGENT, $UserAgent);curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);$data = curl_exec($curl);curl_close($curl);return $data; } //URL $url = $_GET['url'];if (empty($url)) {echo json_encode(['code' => 0, 'msg' => '請輸入正確視頻網址，格式為：douyin.php?url=視頻地址']); }else{$data = GetUrl($url);//獲取preg_match('/playAddr: "(?<url>[^"]+)"/i', $data, $url);preg_match('/<p class="desc">(?<desc>[^<>]*)<\/p>/i', $data, $name);$name = $name['desc'];$url = $url['url'];if(empty($url)){echo json_encode(['code' => 0, 'msg' => '解析錯誤']);exit;}preg_match('/s_vid=(.*?)&/', $url, $id);$url = 'https://aweme.snssdk.com/aweme/v1/play/?s_vid=' . $id[1] . '&line=0';$data_new = GetVideos($url);preg_match('/<a href=\"http:\/\/(.*?)\">/', $data_new, $link);if (empty($link[1])) {echo json_encode(['code' => 0, 'msg' => '解析錯誤']);exit;}$link = 'http://' . $link[1];echo json_encode(['code' => 1, 'name' => $name, 'url' => $link]); }

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總結

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