PHP使用微软认知服务Face API - HelloWorld开发者社区

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 =/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);
?>