PHP Requires Chilkat v11.0.0+

Iterate Over ZIP Entries Using EntryAt

This example demonstrates how to use the EntryAt method to iterate over all entries contained within a ZIP archive.

The EntryAt method retrieves a ZipEntry object for a given zero-based index.

This is useful for:

• Enumerating all entries in a ZIP archive
• Inspecting filenames, sizes, and timestamps
• Searching or filtering ZIP contents

Suppose the ZIP archive contains:

docs/readme.txt
images/logo.png
data/config.json

The example loops through all ZIP entries and prints information about each entry.

Chilkat2 PHP

<?php

use Chilkat2\Zip;
use Chilkat2\ZipEntry;

// Open an existing ZIP archive.
$zip = new Zip();

try {
    $zip->OpenZip('example.zip');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// Get the total number of entries in the ZIP archive.
$numEntries = $zip->NumEntries;

echo 'Number of ZIP entries = ', $numEntries, "\n";

// Create a ZipEntry object that will be reused
// for each entry retrieved by EntryAt.
$entry = new ZipEntry();

// Iterate over all ZIP entries.
$i = 0;
while ($i < $numEntries) {
    // Retrieve the entry at index i.
    try {
        $zip->EntryAt($i, $entry);
    } catch (\Chilkat2\Exception $e) {
        echo $e->getMessage(), "\n";
        exit;
    }

    echo 'Entry ', $i, "\n";
    echo '  FileName: ', $entry->FileName, "\n";
    echo '  Uncompressed Length: ', $entry->UncompressedLength, "\n";
    echo '  Compressed Length: ', $entry->CompressedLength, "\n";
    echo "\n";

    $i = $i + 1;
}

// Sample output:
//
// Entry 0
//   FileName: docs/readme.txt
//   Uncompressed Length: 1204
//   Compressed Length: 512
//
// Entry 1
//   FileName: images/logo.png
//   Uncompressed Length: 84211
//   Compressed Length: 84102
//

$zip->CloseZip();

echo "Done.\n";