PHP

Iterate Through ZIP Entries Using EntryAt and ZipEntry.GetNext

See more Zip Examples

This example demonstrates how to iterate through all entries in a ZIP archive using:

• Zip.EntryAt to obtain the first entry
• ZipEntry.GetNext to advance through the remaining entries

The example prints each ZIP entry's stored filename and whether the entry is a file or directory.

This approach is useful when sequentially processing ZIP entries without repeatedly calling EntryAt by index.

Suppose the ZIP archive contains:

docs/
docs/readme.txt
images/logo.png
hello.txt

The example iterates through each entry in the order stored within the ZIP archive.

Chilkat2 PHP

<?php

use Chilkat2\Zip;
use Chilkat2\ZipEntry;

$success = false;

$zip = new Zip();

// Open an existing ZIP archive.
try {
    $zip->OpenZip('c:/temp/example.zip');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// A ZIP archive may contain zero entries.
if ($zip->NumEntries == 0) {
    echo "The ZIP archive is empty.\n";

    $zip->CloseZip();
    exit;
}

// ------------------------------------------------------------
// Get the first ZIP entry.
//
// EntryAt(0,entry) initializes the ZipEntry object so that
// it represents the first entry in the ZIP archive.
//
$entry = new ZipEntry();

try {
    $zip->EntryAt(0, $entry);
    $success = true;
} catch (\Chilkat2\Exception $e) {
    $success = false;
}
if (!$success) {
    echo $zip->LastErrorText, "\n";
    exit;
}

// ------------------------------------------------------------
// Iterate through all ZIP entries.
//
// GetNext updates the same ZipEntry object so that it
// represents the next entry in the ZIP archive.
//
while ($success) {
    if ($entry->IsDirectory) {
        echo '[Directory] ', $entry->FileName, "\n";
    } else {
        echo '[File] ', $entry->FileName, "\n";
    }

    // Advance to the next entry.
    $success = $entry->GetNext();
}

$zip->CloseZip();

echo "Done.\n";