http://www.developer.com/lang/php/article.php/3875066/Working-with-Zip-Archives-in-PHP.htm
The PHP Zip archive extension is used to manage Zip archives and the files they contain. To use this extension in PHP 5, all you need to do is enable the php_zip.dll inside of the php.ini file. In her PHPBuilder.com article, Octavia Andreea Anghel explains how to manage Zip archive files in PHP using a number of demo PHP applications. Specifically, you'll learn how to:
Working with Zip Archives in PHP
April 6, 2010
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Working with Zip Archives in PHP