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参考腾讯云官方文档：人脸核身 获取 SIGN ticket_腾讯云

前提条件：已经获取了access_token。获取方法可参考：

PHP腾讯云人脸核身获取Access Token-CSDN博客

public function getSignTicket(){$access_token = file_get_contents('/data/config/tx_face_accesstoken.txt');if(!$access_token){return;}$data = ['appId' => '', //WBappid,https://cloud.tencent.com/document/product/1007/49634'access_token' => $access_token,'type' => 'SIGN', 'version' => '1.0.0'];$str = http_build_query($data);$url = 'https://kyc1.qcloud.com/api/oauth2/api_ticket?'.$str;$result = $this->cmf_curl_get($url);$arr = json_decode($result,true);if($arr['code'] == 0){$ticket = $arr['tickets'][0]['value'];//写入磁盘file_put_contents('/data/config/tx_face_signticket.txt',$ticket);}
}function cmf_curl_get($url){$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_FAILONERROR, true);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);curl_setopt($ch, CURLOPT_AUTOREFERER, true);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch, CURLOPT_TIMEOUT, 5);$SSL = substr($url, 0, 8) == "https://" ? true : false;if ($SSL) {curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 信任任何证书curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); // 检查证书中是否设置域名}$content = curl_exec($ch);curl_close($ch);return $content;
}