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phpcompressionlzma

Decompressing LZMA with PHP

I have a load of SWF files compressed with LZMA that I would like to programatically decompress and read with PHP on my server. Can someone direct me to a PHP LZMA SDK? I've googled for it, but have so far found nothing but references to a broken link (7z extension for php?)

I have a working python module that manages to read headers of LZMA compressed SWFs but it requires a module called pyLZMA which doesn't seem to want to install on my server, and getting it to work locally was a massive pain in the arse so I'd much prefer a PHP solution if one exists.

Solution

  • There is a library called PHP-SevenZipArchive which is a wrapper to 7za and 7zr binaries. Simple test scenario working for me in linux:

    install p7zip package (yum install p7zip or similar)

    create test compressed file in linux shell

    echo "Compressed data" | lzma -z > compressed.string

    download and unzip PHP-SevenZipArchive

    wget https://github.com/cmanley/PHP-SevenZipArchive/archive/master.zip
unzip master.zip

    create directory for decompressed output

    mkdir out

    create test php file

    <?php
require "./PHP-SevenZipArchive-master/SevenZipArchive.php";
$archive = new SevenZipArchive('compressed.string', array('binary'=>'/usr/bin/7za'));
$archive->extractTo('out');
?>

    php -f ./index.php will create file out/compressed

    cat out/compressed

    Compressed data

    NOTE: My previous answer was deleted by moderators for its poor quality, although I already got a positive reputation for it. So I rewrote it completely in a detailed way. Hope this helps even more.