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# CXI. Zip File Functions (Read Only Access)

# Introduction

This module enables you to transparently read ZIP compressed archives and the files inside them.

# Requirements

This module uses the functions of the ZZIPlib library by Guido Draheim. You need ZZIPlib version >= 0.10.6.

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.

# Installation

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.

> 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.

# Runtime Configuration

This extension has no configuration directives defined in `php.ini`.

# Resource Types

This extension has no resource types defined.

# Predefined Constants

This extension has no constants defined.

# Examples

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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