README

这是Wit.ai的非官方php SDK，仍在开发中...

Wit.ai: Easily create text or voice based bots that humans can chat with on their preferred messaging platform.

## 安装

通过composer

$ composer require tgallice/wit-php

使用方法

使用低级Client

require_once __DIR__.'/vendor/autoload.php';

use Tgallice\Wit\Client;

$client = new Client('app_token');

$response = $client->get('/message', [
    'q' => 'Hello I live in London',
]);

// Get the decoded body
$intent = json_decode((string) $response->getBody(), true);

你可以使用Message API类来提取句子的意义

require_once __DIR__.'/vendor/autoload.php';

use Tgallice\Wit\Client;
use Tgallice\Wit\MessageApi;

$client = new Client('app_token');
$api = new MessageApi($client);

$meaning = $api->extractMeaning('Hello I live in London');

会话

Conversation类提供了一个简单的方式来使用converse API并自动执行链式步骤

首先，你需要创建一个ActionMapping类来定制动作行为。

namespace Custom;

use Tgallice\Wit\Model\Step\Action;
use Tgallice\Wit\Model\Step\Message;

class MyActionMapping extends ActionMapping
{
    /**
     * @inheritdoc
     */
    public function action($sessionId, Context $context, Action $step)
    {
        return call_user_func_array(array($this, $step->getAction()), array($sessionId, $context));
    }

    /**
     * @inheritdoc
     */
    public function say($sessionId, Context $context, Message $step)
    {
        echo $step->getMessage();
    }

     ....
}

然后在Conversation类中使用它。

require_once __DIR__.'/vendor/autoload.php';

use Tgallice\Wit\Client;
use Tgallice\Wit\ConverseApi;
use Tgallice\Wit\Conversation;
use Custom\MyActionMapping;

$client = new Client('app_token');
$api = new ConverseApi($client);
$actionMapping = new MyActionMapping();
$conversation = new Conversation($api, $actionMapping);

$context = $conversation->converse('session_id', 'Hello I live in London');

Conversation::converse()返回最后一个可用的Context。

一些示例可以在tgallice/php-wit-example仓库中找到。