//獲取access_token 
function request_post($url = '', $param = '') { 
 if (empty($url) || empty($param)) { 
 return false; 
 } 
 
 $postUrl = $url; 
 $curlPost = $param; 
 $curl = curl_init();//初始化curl 
 curl_setopt($curl, CURLOPT_URL,$postUrl);//抓取指定網頁 
 curl_setopt($curl, CURLOPT_HEADER, 0);//設置header 
 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求

private function init_face(){ 
 $App_ID = '用戶appid'; 
 $API_Key = '用戶api_key'; 
 $Secret_Key = '用戶secret_key'; 
 
 $dir = APP_PATH.'/face-sdk/'; 
 require_once $dir."AipFace.php"; 
 return new \AipFace($App_ID, $API_Key, $Secret_Key); 
}

// 人臉檢測 
public function facevalid(){ 
 $file = './Upload/2018-05-17/1.png'; 
 if (!file_exists($file)) { 
 die('文件不存在！'); 
 } 
 $image = base64_encode(file_get_contents($file)); 
 $imageType = 'BASE64'; 
 //如果有可選參數 
 $options = array(); 
 $options['max_face_num'] = 2; 
 
 $client = $this->init_face(); 
 $ret = $client->detect($image,$imageType,$options); 
 // print_r($ret); 
 if ($ret['error_code'] == 0) {//有人臉 
 $result = $ret['result']; 
 $face_num = $result['face_num']; 
 
 if ($face_num==1) { //人臉數量為1 
 $face_probability = $result['face_list'][0]['face_probability']; 
 if ($face_probability==1) { //可靠性為1 
 $user_id = myguid(); 
 $group_id = $this->face_group(); 
 $res = $client->addUser($image,'BASE64',$group_id,$user_id); 
 // print_r($res); 
 if ($res['error_code']==0) { 
 echo "人臉檢測完成，并入庫"; 
 } 
 }else{ 
 die('可靠性為：'.$face_probability); 
 } 
 }else{ 
 die('人臉數大于1'); 
 } 
 }else{ 
 die('沒有人臉'); 
 } 
 
 } 
 // 獲取組 
 private function face_group(){ 
 $groupname = '10001'; 
 $client = $this->init_face(); 
 $ret = $client->getGroupList(); 
 if ($ret['error_code'] == 0) { 
 $grouplist = $ret['result']['group_id_list']; 
 if (in_array($groupname, $grouplist)) { 
 return $groupname; 
 }else{ 
 $ret = $client->groupAdd($groupname); 
 if ($ret['error_code'] == 0) { 
 return $groupname; 
 }else{ 
 return false; 
 } 
 } 
 }else{ 
 return false; 
 } 
}