zip.lib.php

Zdravim,
nevite jak v PHP otevrit zazipovanej soubor? Vim jak v php zazipovat ale jak rozzipovat to nekde neni.
Dike a cus.
<HTML>int readgzfile ( string filename [, int use_include_path])


Reads a file, decompresses it and writes it to standard output.</HTML>
to je GZ to umi, ale kdyz pouziavm zip.lib.php a je to zipac a ne gz ?
manual pravi:
zip_close -- Close a Zip File Archive
zip_entry_close -- Close a Directory Entry
zip_entry_compressedsize -- Retrieve the Compressed Size of a Directory Entry
zip_entry_compressionmethod -- Retrieve the Compression Method of a Directory Entry
zip_entry_filesize -- Retrieve the Actual File Size of a Directory Entry
zip_entry_name -- Retrieve the Name of a Directory Entry
zip_entry_open -- Open a Directory Entry for Reading
zip_entry_read -- Read From an Open Directory Entry
zip_open -- Open a Zip File Archive
zip_read -- Read Next Entry in a Zip File Archive
a muzete mne nekdo pls napsat jak vytahnu rozzipovana data ze zipu zip.zip a souboru soubor.txt ? :)

Jdu to neak zkusit :-) ale kdyby to uz nekdo mnel tak by se to hodilo :-)
a nevite jak naistalovat ZZIPlib ?mne to hlasi neznama fce zip_open