question-answering.php

<?php

use PhpLlm\LlmChain\Bridge\HuggingFace\Model;
use PhpLlm\LlmChain\Bridge\HuggingFace\PlatformFactory;
use PhpLlm\LlmChain\Bridge\HuggingFace\Task;
use Symfony\Component\Dotenv\Dotenv;

require_once dirname(__DIR__, 2).'/vendor/autoload.php';
(new Dotenv())->loadEnv(dirname(__DIR__, 2).'/.env');

if (empty($_ENV['HUGGINGFACE_KEY'])) {
    echo 'Please set the HUGGINGFACE_KEY environment variable.'.PHP_EOL;
    exit(1);
}

$platform = PlatformFactory::create($_ENV['HUGGINGFACE_KEY']);
$model = new Model('deepset/roberta-base-squad2');

$input = [
    'question' => 'What is the capital of France?',
    'context' => 'Paris is the capital and most populous city of France, with an estimated population of 2,175,601 residents as of 2018, in an area of more than 105 square kilometres.',
];

$response = $platform->request($model, $input, [
    'task' => Task::QUESTION_ANSWERING,
]);

dump($response->getContent());