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# CVII. Zip File Functions (Read Only Access)

This module uses the functions of the ZZIPlib library by Guido Draheim to transparently read ZIP compressed archives and the files inside them.

Please note that ZZIPlib only provides a subset of functions provided in a full implementation of the ZIP compression algorithm and can only read ZIP file archives. A normal ZIP utility is needed to create the ZIP file archives read by this library.

Zip support in PHP is not enabled by default. You will need to use the --with-zip configuration option when compiling PHP to enable zip support. This module requires ZZIPlib version >= 0.10.6.

> Note: Zip support before PHP 4.1.0 is experimental. This section reflects the Zip extension as it exists in PHP 4.1.0 and later.

# Example Usage

This example opens a ZIP file archive, reads each file in the archive and prints out its contents. The `test2.zip` archive used in this example is one of the test archives in the ZZIPlib source distribution.

Example 1. Zip Usage Example
    <?php

    $zip = zip_open("/tmp/test2.zip");

    if ($zip) {

        while ($zip_entry = zip_read($zip)) {
            echo "Name:               " . zip_entry_name($zip_entry) . "\n";
            echo "Actual Filesize:    " . zip_entry_filesize($zip_entry) . "\n";
            echo "Compressed Size:    " . zip_entry_compressedsize($zip_entry) . "\n";
            echo "Compression Method: " . zip_entry_compressionmethod($zip_entry) . "\n";

            if (zip_entry_open($zip, $zip_entry, "r")) {
                echo "File Contents:\n";
                $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
                echo "$buf\n";

                zip_entry_close($zip_entry);
            }
            echo "\n";

        }

        zip_close($zip);

    }

    ?>

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