提示face 人脸识别获取token失败

首先，在common里面创建一个function.php文件
<?php function request_post($url , $param ) {if (empty($url) || empty($param)) {return false;}$postUrl = $url;$curlPost = $param;$curl = curl_init();//初始化curlcurl_setopt($curl, CURLOPT_URL,$postUrl);//抓取指定网页curl_setopt($curl, CURLOPT_HEADER, 0);//设置headercurl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上curl_setopt($curl, CURLOPT_POST, 1);//post提交方式curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);curl_setopt($curl, CURLOPT_SSLVERSION, 1);$data = curl_exec($curl);//运行curlcurl_close($curl);return $data;}function access_token(){$file=__DIR__.'\access_token';if(file_exists($file)){$str=file_get_contents($file);try{$arr=json_decode($str,true);if (is_array($arr)) {$totime=$arr['totime'];if ($totime>time()) {return $arr['access_token'];exit;}}}catch(Exception $e){}}$url = 'https://aip.baidubce.com/oauth/2.0/token';$post_data['grant_type'] = 'client_credentials';$post_data['client_id'] = '你自己的client_id';$post_data['client_secret'] = '你自己的client_secret';$o = "";foreach ( $post_data as $k => $v ){$o.= "$k=" . urlencode( $v ). "&" ;}$post_data = substr($o,0,-1);$res = request_post($url, $post_data);$arr=json_decode($res,true);if (isset($arr['access_token']) && isset($arr['expires_in'])) {$data['access_token']=$arr['access_token'];$data['totime']=time()+$arr['expires_in']-3600;file_put_contents($file, json_encode($data));return $arr['access_token'];}else{return false;}// return json_decode($res,true); //注意需要转换一下 }?>

然后在index控制器中调用access_token方法
//人脸检测 public function facevalid(){ //获取access_token $token=access_token(); // echo $token; $file='./Uploads/1.jpg'; if(!file_exists($file)){ die('文件不存在'); } $url="https://aip.baidubce.com/rest/2.0/face/v2/detect?access_token=".$token; $img=file_get_contents($file); $img=base64_encode($img); $bodys=array( 'max_face_num'=>5, 'face_fields'=>"age,beauty,expression,faceshape,gender,glasses,landmark,race,qualities", 'image'=>$img ); $res=request_post($url,$bodys); echo $res; }

在浏览器中运行facevalid方法，就可以获取人脸信息。