使用thinkPHP框架 來獲取人臉識別的token。

在application中的common中新建一個function.php

/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);//設定header
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求結果為字串且輸出到螢幕上
        curl_setopt($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);//執行curl
        curl_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){

        }
    }



       $apikey="你的apikey";
       $secretkey="你的secretkey";

		$url = 'https://aip.baidubce.com/oauth/2.0/token';
	    $post_data['grant_type']       = 'client_credentials';
	    $post_data['client_id']      = $apikey;
	    $post_data['client_secret'] = $secretkey;
	    $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;
    }

	    // var_dump($res);
	}

2.  home的index控制器中

 public function upload($id=''){   //上傳圖片
		$upload = new \Think\Upload();// 例項化上傳類
		$upload->maxSize = 3145728 ;// 設定附件上傳大小
		$upload->exts = array('jpg', 'gif', 'png', 'jpeg');// 設定附件上傳型別
		$upload->rootPath = './Uploads/'; // 設定附件上傳根目錄
		$upload->savePath = ''; // 設定附件上傳（子）目錄
		// 上傳單個檔案
		$info = $upload->uploadOne($_FILES['file']);
		if(!$info) {// 上傳錯誤提示錯誤資訊
		   return $this->ajaxReturn(array('error'=>true,'msg'=>$upload->getErroe()));
		}else{// 上傳成功 獲取上傳檔案資訊
		    // echo $info['savepath'].$info['savename'];
		     return $this->ajaxReturn(array('error'=>false,'msg'=>$info['savepath'].$info['savename'],'id'=>$id));
		}
	}
 

//人臉檢測
	public function facevalid(){
		$token = access_token();//獲取的token
		// echo $token;

		$file = './Uploads/1.jpg';
		if (!file_exists($file)) {
			die('檔案不存在！');
		}


		 $url="https://aip.baidubce.com/rest/2.0/face/v2/detect?access_token=".$token;
		    $img=file_get_contents($file);
		    $img=base64_encode($img);
		    // echo $img;    
		    $bodys=array(
		       'max_face_num'=>5,
		       'face_fileds'=>"age,beauty,expression,faceshape,gender,galsses,landmark,race,qualities",
		       'image'=>$img
		      );
		    $res=request_post($url,$bodys);
		    echo $res;//輸出圖片檢測出的資訊
		   }