Loading, Saving and Creating

Loading, Saving and Creating#

Load an existing torrent#

You can load a torrent from file, from string, or from stream.

<?php

use Arokettu\Torrent\TorrentFile;

// from file
$torrent = TorrentFile::load('debian.torrent');
// from string
$torrent = TorrentFile::loadFromString(file_get_contents('debian.torrent'));
// from stream
$torrent = TorrentFile::loadFromStream(fopen('debian.torrent', 'r'));

Save torrent#

You can save your torrent to file, to string, or to stream.

<?php

// to file
$torrent->store('debian.torrent');
// to string
$torrentString = $torrent->storeToString();
// to stream
$torrent->storeToStream($stream);
// to new php://temp stream
$phpTemp = $torrent->storeToStream();

Create a torrent for existing directory or file#

Added in version 5.1: forceMultifile is true by default

Added in version 5.3: createdBy, creationDate

The library can create a torrent file from scratch for a file or a directory.

<?php

use Arokettu\Torrent\TorrentFile;

$torrent = TorrentFile::fromPath(
    '/home/user/ISO/Debian',
    pieceLength: 512 * 1024,
);

// pass an instance of PSR-14 event dispatcher to receive progress events:
$torrent = TorrentFile::fromPath('/home/user/ISO/Debian', $eventDispatcher);
// dispatcher will receive instances of \Arokettu\Torrent\FileSystem\FileDataProgressEvent
//    only in 2.0 and later

Available options:

version

BitTorrent metadata file version.

  • MetaVersion::V1 as described in BEP-3 spec.

  • MetaVersion::V2 as described in BEP-52 spec.

  • A list [MetaVersion::V1, MetaVersion::V2] for a hybrid torrent both V1 and V2 metadata.

Default: [MetaVersion::V1, MetaVersion::V2] (was MetaVersion::V1 in 2.x)

pieceLength

The number of bytes that each logical piece in the peer protocol refers to. Must be a power of 2 and at least 16 KiB. Default: 524_288 (512 KiB)

pieceAlign

Align files to piece boundaries by inserting pad files. The option is ignored for V2 and V1+V2 torrent files because files in V2 are always aligned.

  • true: Align all files

  • false: Do not align

  • int $bytes: Align files larger than $bytes in length

Default: false

detectExec

The library detects executable attribute and sets it on files. Default: true

detectSymlinks

The library detects symlinks and creates symlink torrent objects. Only symlinks leading to files in the torrent data directory are detected. Default: false

forceMultifile

V1 torrents are created in ‘directory’ mode even when created for a single file. This mode fixes some possible incompatibilities between V1 and V2 data in hybrid torrents. Always enabled in hybrid torrents, meaningless for pure V2. Default: true

createdBy

Override created by field for the created torrent. Pass null to unset. Default: the library name and url.

creationDate

Override creation date field for the created torrent. Accepts instances of DateTimeInterface and ClockInterface and integer timestamps. Pass null to unset. Default: the current timestamp.

Note

Defaults may change in minor versions. If you care about their specific values, set them explicitly.

Warning

Parameter order is not guaranteed for options. Please use named parameters.

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