PHP eBook

PHP package to read metadata and extract covers from eBooks, comics and audiobooks.

• eBooks: .epub, .pdf, .azw, .azw3, .kf8, .kfx, .mobi, .prc, .fb2
• Comics: .cbz, .cbr, .cb7, .cbt (metadata from github.com/anansi-project)
• Audiobooks: .mp3, .m4a, .m4b, .flac, .ogg with external packagekiwilan/php-audio (MUST be installed separately)

To know more see Supported formats. Supports Linux, macOS and Windows.

Note

This package favors eBooks in open formats such as .epub (from IDPF) or .cbz (from CBA) and which be parsed with native PHP, so for the best possible experience we recommend converting the eBooks you use. If you want to know more about eBook ecosystem, you can read documentation.

Warning

For DRM (Digital Rights Management) eBooks, in some cases you could read metadata but not contents (like HTML files for EPUB). To use all features, you have to use a software to remove DRM before using this package. For EPUB, you can use calibre with DeDRM plugin, this guide can help you.

About

This package was built for bookshelves-project/bookshelves, a web app to handle eBooks.

Requirements

• PHP version >=8.1
• PHP extensions:
  • zip (native, optional) for .EPUB, .CBZ
  • phar (native, optional) for .CBT
  • rar (optional) for .CBR (p7zip binary can be used instead)
  • imagick (optional) for .PDF cover
  • intl (native, optional) for Transliterator for better slugify
  • fileinfo (native, optional) for better detection of file type
• Binaries
  • p7zip (optional) binarys for .CB7 (can handle .CBR too)
• Audiobooks
  • kiwilan/php-audio (optional) for .mp3, .m4a, .m4b, .flac, .ogg (see Supported formats)
• To know more about requirements, see Supported formats

Note

You have to install requirements only if you want to read metadata for these formats, e.g. if you want to read metadata from .cbr files, you have to install rar PHP extension or p7zip binary. So all requirements for PHP extensions and binaries are optional.

Warning

Archives are handle with kiwilan/php-archive, for some formats (.cbr and .cb7) rar PHP extension or p7zip binary could be necessary. Some guides to install these requirements are available on kiwilan/php-archive.

Features

• Support multiple formats, see Supported formats
• 🔎 Read metadata from eBooks, comics, and audiobooks
• 🖼️ Extract covers from eBooks, comics, and audiobooks
• 🎵 Works with audiobooks if kiwilan/php-audio is installed
• 📚 Support metadata
  • eBooks: EPUB v2 and v3 from IDPF with calibre:series from Calibre | MOBI from Mobipocket (and derivatives) | FB2 from FictionBook
  • Comics: CBAM (Comic Book Archive Metadata) : ComicInfo.xml format from ComicRack and maintained by anansi-project
  • PDF with smalot/pdfparser
  • Audiobooks: ID3, vorbis and flac tags with kiwilan/php-audio (not included), based on audiobookshelf specifications
• 🔖 Chapters extraction (EPUB only)
• 📦 EPUB and CBZ creation supported

• Works perfectly with kiwilan/php-opds: PHP package to generate OPDS feeds (not included)

Roadmap

• Better .epub creation support
• Add .epub metadata update support
• Add better handling of MOBI files: libmobi and ebook-convert from Calibre (fallback is available)
• Add support of ebook-convert from Calibre
• Add suport for DJVU: djvulibre

Installation

You can install the package via composer:

composer require kiwilan/php-ebook

Usage

With eBook files or audiobook* files (to know more about formats, see Supported formats).

*: should be installed separately, see Requirements.

use Kiwilan\Ebook\Ebook;

$ebook = Ebook::read('path/to/ebook.epub');

$ebook->getPath(); // string => path to ebook
$ebook->getFilename(); // string => filename of ebook
$ebook->getExtension(); // string => extension of ebook
$ebook->getTitle(); // string
$ebook->getAuthors(); // BookAuthor[] (`name`: string, `role`: string)
$ebook->getAuthorMain(); // ?BookAuthor => First BookAuthor (`name`: string, `role`: string)
$ebook->getDescription(); // ?string
$ebook->getDescriptionHtml(); // ?string
$ebook->getCopyright(); // ?string
$ebook->getPublisher(); // ?string
$ebook->getIdentifiers(); // BookIdentifier[] (`value`: string, `scheme`: string)
$ebook->getPublishDate(); // ?DateTime
$ebook->getLanguage(); // ?string
$ebook->getTags(); // string[] => `subject` in EPUB, `keywords` in PDF, `genres` in CBA
$ebook->getSeries(); // ?string => `calibre:series` in EPUB, `series` in CBA
$ebook->getVolume(); // ?int => `calibre:series_index` in EPUB, `number` in CBA
$ebook->getCreatedAt(); // ?DateTime => file modified date
$ebook->getSize(); // int => file size in bytes
$ebook->getSizeHumanReadable(); // string => file size in human readable format

For pages count, you can use these methods:

$ebook->getPagesCount(); // ?int => estimated pages count (250 words by page) in `EPUB`, `pageCount` in PDF, `pageCount` in CBA
$ebook->getWordsCount(); // ?int => words count in `EPUB`

Note

For performance reasons, with EPUB, pagesCount and wordsCount are only available on demand. If you use var_dump to check eBook, these properties will be null.

Some metadata can be stored into extras() method, without typing, directly from metadata.

$ebook->getExtras(); // array<string, mixed> => additional data for book
$ebook->getExtra(string $key); // mixed => safely extract data from `extras` array

Note

For audiobooks, all metadata are stored into extras array, you will find duplicate with Ebook::class properties. See Formats specifications for more informations.

To know if eBook is valid, you can use isValid() static method, before read().

use Kiwilan\Ebook\Ebook;

$isValid = Ebook::isValid('path/to/ebook.epub');

To get additional data, you can use these methods:

$ebook->getParser(); // ?EbookParser => Parser with modules
$ebook->getMetaTitle(); // ?MetaTitle, with slug for `title` and `series`
$ebook->getFormat(); // ?EbookFormatEnum => `epub`, `pdf`, `cba`
$ebook->getCover(); // ?EbookCover => cover of book

To access to archive of eBook, you can use getArchive() method. You can find more informations about archive in kiwilan/php-archive.

$ebook->getArchive(); // ?BaseArchive => archive of book from `kiwilan/php-archive`

And to test if some data exists:

$ebook->isArchive(); // bool => `true` if `EPUB`, `CBA`
$ebook->isMobi(); // bool => `true` if Mobipocket derivatives
$ebook->isAudio(); // bool => `true` if `mp3`, `m4a`, `m4b`, `flac`, `ogg`
$ebook->hasCover(); // bool => `true` if cover exists
$ebook->hasMetadata(); // bool => `true` if metadata exists
$ebook->hasSeries(); // bool => `true` if series exists
$ebook->isBadFile(); // bool => `true` if file is not readable

Metadata

Ebook::class contains many informations but if you want to access to raw metadata, metadata() method is available.

use Kiwilan\Ebook\Ebook;

$ebook = Ebook::read('path/to/ebook.epub');

$parser = $ebook->getParser();

$parser->getModule(); // Used into parsing can be any of `EbookModule::class`

$parser->getAudiobook(); // `AudiobookModule::class`
$parser->getCba(); // `CbaModule::class`
$parser->getEpub(); // `EpubModule::class`
$parser->getFb2(); // `Fb2Module::class`
$parser->getMobi(); // `MobiModule::class`
$parser->getPdf(); // `PdfModule::class`

$parser->isAudiobook(); // bool
$parser->isCba(); // bool
$parser->isEpub(); // bool
$parser->isFb2(); // bool
$parser->isMobi(); // bool
$parser->isPdf(); // bool

MetaTitle

Can be set if book's title is not null.

use Kiwilan\Ebook\Ebook;

$ebook = Ebook::read('path/to/ebook.epub');
$metaTitle = $ebook->getMetaTitle(); // ?MetaTitle

$metaTitle->getSlug(); // string => slug title, like `lord-of-the-rings-en-01-fellowship-of-the-ring-j-r-r-tolkien-1954-epub`
$metaTitle->getSlugSimple(); // string => slug title simple, like `the-fellowship-of-the-ring`
$metaTitle->getSeriesSlug(); // ?string => slug series title, like `lord-of-the-rings-en-j-r-r-tolkien-epub`
$metaTitle->getSeriesSlugSimple(); // ?string => slug series title simple, like `the-lord-of-the-rings`

Cover

Cover can be extracted from ebook.

use Kiwilan\Ebook\Ebook;

$ebook = Ebook::read('path/to/ebook.epub');
$cover = $ebook->getCover(); // ?EbookCover

$cover->getPath(); // ?string => path to cover
$cover->getContents(bool $toBase64 = false); // ?string => content of cover, if `$toBase64` is true, return base64 encoded content

Note

• For PDF, cover can only be extracted if imagick PHP extension.
• For Audiobook, cover can be extracted with some formats.

Formats specifications

Audiobooks

For audiobooks, you have to install seperately kiwilan/php-audio.

Specifications are based on audiobookshelf and ID3 tags. Metadata on audio files will be mapped as follows (second tag after "/" is a fallback):

Properties of Audio::class are:

ID3 Tag (case-insensitive)	eBook
artist / album-artist	Authors*
album / title	Title
subtitle	Extra property subtitle
publisher	Publisher
year	Publish Year
composer	Extra property narrators
description	Description
genre	Tags**
series / mvnm	Series
series-part / mvin	Volume
language / lang	Language
isbn	Identifiers isbn
asin / audible_asin	Identifiers asin
Overdrive MediaMarkers	Extra property chapters

• * Authors naming as well as multiple authors separated by ,, ;, & or and.
• ** Tags can include multiple tags separated by /, //, or ;. e.g. "Science Fiction/Fiction/Fantasy"

You can find all metadata into getExtras() array of Ebook::class.

EPUB

With EPUB, metadata are extracted from OPF file, META-INF/container.xml files, you could access to these metatada but you can also get chapters from NCX file. And with chapters() method you can merge NCX and HTML chapters to get full book chapters with label, source and content.

use Kiwilan\Ebook\Ebook;

$ebook = Ebook::read('path/to/ebook.epub');

$epub = $ebook->getParser()?->getEpub();

$epub->getContainer(); // ?EpubContainer => {`opfPath`: ?string, `version`: ?string, `xml`: array}
$epub->getOpf(); // ?OpfItem => {`metadata`: array, `manifest`: array, `spine`: array, `guide`: array, `epubVersion`: ?int, `filename`: ?string, `dcTitle`: ?string, `dcCreators`: BookAuthor[], `dcContributors`: BookContributor[], `dcDescription`: ?string, `dcPublisher`: ?string, `dcIdentifiers`: BookIdentifier[], `dcDate`: ?DateTime, `dcSubject`: string[], `dcLanguage`: ?string, `dcRights`: array, `meta`: BookMeta[], `coverPath`: ?string, `contentFile`: string[]}
$epub->getNcx(); // ?NcxItem => {`head`: NcxItemHead[]|null, `docTitle`: ?string, `navPoints`: NcxItemNavPoint[]|null, `version`: ?string, `lang`: ?string}
$epub->getChapters(); // EpubChapter[] => {`label`: string, `source`: string, `content`: string}[]
$epub->getHtml(); // EpubHtml[] => {`filename`: string, `head`: ?string, `body`: ?string}[]
$epub->getFiles(); // string[] => all files in EPUB

Note

For performance reasons, with ncx, html and chapters are only available on demand. If you use var_dump to check metadata, these properties will be null.

Creation

You can create an EPUB or CBZ file with create() static method.

Note

Only EPUB and CBZ are supported for creation.

use Kiwilan\Ebook\Ebook;

$creator = Ebook::create('path/to/ebook.epub');

// Build manually
$creator->addFromString('mimetype', 'application/epub+zip')
    ->addFromString('META-INF/container.xml', '<?xml version="1.0" encoding="UTF-8" standalone="no" ?><container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container"><rootfiles><rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/></rootfiles></container>')
    ->save();

// Build from files
$creator->addFile('mimetype', 'path/to/mimetype')
    ->addFile('META-INF/container.xml', 'path/to/container.xml')
    ->save();

// Build from directory
$creator->addDirectory('./', 'path/to/directory')
    ->save();

Supported formats

There is a lot of different formats for eBooks and comics, if you want to know more about:

• Comparison of e-book formats for eBooks
• Comic book archive for comics
• Amazing MobileRead wiki

Name	Extensions	Supported	Uses	Support cover	Support series
EPUB (IDPF)	.epub	✅	Native zip	✅	✅
Kindle (Amazon)	.azw, .azw3, .kf8, .kfx	✅	Native filesystem	✅ (See MOBI cover note)	❌
Mobipocket	.mobi, .prc	✅	Native filesystem	✅ (See MOBI cover note)	❌
PDF	.pdf	✅	smalot/pdfparser (included)	Uses imagick	❌
iBook (Apple)	.ibooks	❌		N/A	N/A
DjVu	.djvu, .djv	❌		N/A	N/A
Rich Text Format	.rtf	❌		N/A	N/A
FictionBook	.fb2	✅	Native filesystem	✅	✅
Broadband eBooks	.lrf, .lrx	❌		N/A	N/A
Palm Media	.pdb	❌		N/A	N/A
Comics CBZ	.cbz	✅	Native zip	✅	✅
Comics CBR	.cbr	✅	rar PHP extension or p7zip binary	✅	✅
Comics CB7	.cb7	✅	p7zip binary	✅	✅
Comics CBT	.cbt	✅	Native phar	✅	✅
Audio	.mp3, .m4a, .m4b, .flac, .ogg	✅	If kiwilan/php-audio is installed	Depends of format	❌

MOBI cover note

Mobipocket files and derivatives (.mobi, .prc, .azw, .azw3, .kf8, .kfx) can have a cover image embedded in the file. With native solution of php-ebook cover could be extracted but resolution is not good. Best solution is to convert file with calibre and use EPUB format.

Testing

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

Credits

• spatie for spatie/package-skeleton-php
• kiwilan for kiwilan/php-archive, kiwilan/php-audio, kiwilan/php-xml-reader
• Ewilan Rivière author of this package
• All Contributors

License

The MIT License (MIT). Please see License File for more information.