README

A PHP library for retrieving book data by ISBN.

Installation

Requires Composer.

composer require podrecznikomat/php-isbn-api

Requirements

• PHP >= 8.1
• GuzzleHttp

Quick Start

use Podrecznikomat\IsbnApi\Client;
use Podrecznikomat\IsbnApi\IsbnEnum;

$client = new Client(IsbnEnum::E_ISBN_PL);
$book = $client->api()->getBookByIsbn('9788324677658');

// Access book data
echo $book->getFullTitle();
echo $book->getAuthorsAsString();

Book Object Structure

• isbn
• title
• subtitle
• authors
• publisher
• publishedDate
• language
• subjects
• edition

API Support list

• e-isbn.pl
• Google Books API
• Open Library API

Tests

To run tests:

vendor/bin/phpunit tests

License

Copyright (c) 2025 Podrecznikomat

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to use, copy, modify, merge, publish, and distribute the Software within their own projects, subject to the following conditions:

1. Attribution: Any use of the Software must give appropriate credit, including the name of the original author(s).
2. Non-Sale: The Software itself, in source or compiled form, may not be sold as a standalone product.
3. Integration: The Software may be used within commercial or non-commercial projects, provided the above conditions are met.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND.

Contact

Author: Patryk Molenda Email: patryk.fr.molenda@gmail.com