PHP使用微软认知服务Face API
实验环境:
- IDE:Eclipse for PHP Developers
- Version: Neon.1 Release (4.6.1)
- Server:WampServer Version 2.5
- HttpClient:guzzle
1. 使用composer安装Guzzle
- composer.json文件
{
"require": {
"guzzlehttp/guzzle": "~6.0"
}
}
- composer.phar下载
- 打开控制台指令,在项目目录下运行如下指令完成包的安装
php composer.phar install
2. 证书安装
注意:默认的http客户端工具一般到需要证书的认证,如果没有导入相应的证书一般会报SSL证书认证错误。
- 下载证书到本地,下载地址,将其保存到相应的位置。
- 为了让证书生效需要相应修改php.ini,修改方法如下:
curl.cainfo =<filepath>/cacert.pem
3. PHP代码示例
<?php
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\Client;
require_once 'vendor\autoload.php';
$client = new Client();
$headers = ['Content-Type' => 'application/json','Ocp-Apim-Subscription-Key' => '{key}'];
$body = '{"url":"{image's url}"}';
$request = new Request('POST','https://api.cognitive.azure.cn/face/v1.0/detect', $headers , $body);
$response = $client->send($request);
echo $response->getBody();
?>
4. 运行结果示例
[{"faceId":"b22efa8f-0e34-4344-8346-ca8b79d29a27","faceRectangle":{"top":181,"left":184,"width":257,"height":257}}]
5. 读取本地图片
<?php
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\Client;
require_once 'vendor\autoload.php';
$client = new Client();
$headers = ['Content-Type' => 'application/octet-stream','Ocp-Apim-Subscription-Key' => 'bd8e4ce12f444c639ac9c214d70ac72c'];
$myfile = fopen("tt.jpg", "r") or die("Unable to open file!");
$request = new Request('POST','https://api.cognitive.azure.cn/face/v1.0/detect?returnFaceId=true&returnFaceLandmarks=false&returnFaceAttributes=age', $headers , $myfile);
$response = $client->send($request);
echo $response->getBody();
fclose($myfile);
?>
6. 更多参考
- 关于key的获取可以登录世纪互联官方网站申请账户,在新版本的 portal 中即可创建认知服务。
- 认知服务RestAPI参考