Phar, The PHP .exe Format

Phar, The PHP .exe format Helgi Þormar Þorbjörnsson PHP Benelux, 27th of January 2012Friday, 27 January 12

Who am I?Friday, 27 January 12

Helgi Co-founded Orchestra.io Work at EngineYard PEAR Developer From Iceland @h on TwitterFriday, 27 January 12

What is Phar?Friday, 27 January 12

Phar = PHP ArchiveFriday, 27 January 12

Similar to JAR ... But for PHPFriday, 27 January 12

Phar PHP Extension Built in / default from 5.3 onwards More Powerful than PHP_ArchiveFriday, 27 January 12

PEAR: PHP_Archive Reference implementation User Land Code Less Powerful Works on older PHP Not maintained anymoreFriday, 27 January 12

Phar unravelledFriday, 27 January 12

Simple yet flexible File FormatFriday, 27 January 12

Pack multiple files into oneFriday, 27 January 12

PharFriday, 27 January 12

Similar to TarFriday, 27 January 12

The special sauce 1. Stub 2. Manifest 3. File Contents 4. Signature (optional)Friday, 27 January 12

Manifest List of Files File Permission File Compression Meta DataFriday, 27 January 12

Compression Whole Archive Per ﬁle Available Compressions gzip, bz2 and zipFriday, 27 January 12

Stub Piece of PHP code Bootstraping AutoloaderFriday, 27 January 12

Get all the code used in this talk and more! https://github.com/helgi/phar-talkFriday, 27 January 12

Going more practicalFriday, 27 January 12

Normal IncludeFriday, 27 January 12

Phar IncludeFriday, 27 January 12

Phar works via StreamsFriday, 27 January 12

Streams Usage fopen / fwrite / fclose ﬁle_get_contents opendir / rmdir / mkdir anything that works with streamsFriday, 27 January 12

Friday, 27 January 12

Does not extract to diskFriday, 27 January 12

Works on web and CLIFriday, 27 January 12

Can be ran without the extensionFriday, 27 January 12

Why use Phar?Friday, 27 January 12

Full ApplicationsFriday, 27 January 12

CLI Applications Pyrus PHPUnitFriday, 27 January 12

Web ApplicationsFriday, 27 January 12

Setup Tools go-pear.phar PEAR installation in PHP buildsFriday, 27 January 12

Supporting CodeFriday, 27 January 12

Plugins LithiumFriday, 27 January 12

ThemesFriday, 27 January 12

Libraries SilexFriday, 27 January 12

Handy Packaging!Friday, 27 January 12

Executable file for applications!Friday, 27 January 12

Pros and ConsFriday, 27 January 12

Pros Single download with all dependencies Run multiple versions in parallel Upgrades are easy No unpacking Security against modiﬁcationsFriday, 27 January 12

Cons Incremental updates (no deltas) Upgrading is a manual process Web server may need changes Extending the application is harder README / INSTALL become hard to reachFriday, 27 January 12

StubsFriday, 27 January 12

Bootstrap for pharFriday, 27 January 12

Smallest possible StubFriday, 27 January 12

__HALT_COMPILER() is a minimum requirementFriday, 27 January 12

Not used when phar file is used via streamsFriday, 27 January 12

Web PharFriday, 27 January 12

Phar::interceptFileFuncs() Phar::mungServer() Phar::WebPharFriday, 27 January 12

CLI PharFriday, 27 January 12

No Phar::WebPhar() Simple ﬁle include Shebang for easy executionFriday, 27 January 12

Web and CLI PharFriday, 27 January 12

CLI + AutoloadFriday, 27 January 12

CLI + Autoload cli.php a.php b.phpFriday, 27 January 12

Phar offers a default stubFriday, 27 January 12

Will work for mostFriday, 27 January 12

Extracts to temp dir if Phar is not availableFriday, 27 January 12

PerformanceFriday, 27 January 12

Works with APCFriday, 27 January 12

Works on files inside the archiveFriday, 27 January 12

Remember, everything goes via PHP Extract static ﬁles to a directory and serve from thereFriday, 27 January 12

SecurityFriday, 27 January 12

Phar disallows writing by defaultFriday, 27 January 12

Suhosin Enabled by default in Debian and UbuntuFriday, 27 January 12

Signatures are used to check the integrity of the archiveFriday, 27 January 12

Signature Hashes: OpenSSL MD5 SHA1 SHA256 SHA512Friday, 27 January 12

Hashes By default executable Phar is signed SHA1 Tar / Zip are not unless speciﬁedFriday, 27 January 12

Extra Goodies!Friday, 27 January 12

Phar::mount() Mount external ﬁles, such as conﬁg, into the phar archiveFriday, 27 January 12

PharData Phar archives can be extracted to disk Can operate on non-phar gzip and tar extract and compress archives Like PDO for archives! :-)Friday, 27 January 12

Useful Tools phar-util https://github.com/koto/phar-util empir http://empir.sourceforge.net/Friday, 27 January 12

Get all the code used in this talk and more! https://github.com/helgi/phar-talkFriday, 27 January 12

Come to the winter party tomorrow! Beer and food is on me :-) And some awesome swag!Friday, 27 January 12

Questions? @h helgi@engineyard.com https://github.com/helgi/phar-talk Joind.in: http://joind.in/4755Friday, 27 January 12

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Phar, The PHP .exe Format

by Helgi Þormar Þorbjörnsson

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