PHP Requires Chilkat v11.0.0+

Remove an Entry from an Existing ZIP Using DeleteEntry

See more Zip Examples

This example demonstrates how to use the DeleteEntry method to remove a file from an existing ZIP archive.

The example:

• Creates a ZIP archive containing three text files
• Opens the ZIP archive for modification
• Finds and deletes one entry
• Writes the modified ZIP archive to a new filename

Suppose the original ZIP archive contains:

a.txt
b.txt
c.txt

After deleting b.txt, the modified ZIP archive contains:

a.txt
c.txt

The entry is removed only from the in-memory ZIP object until a Write* method is called.

Chilkat2 PHP

<?php

use Chilkat2\Zip;
use Chilkat2\ZipEntry;

$success = false;

// ------------------------------------------------------------
// First create a ZIP archive containing three text files.

$zip = new Zip();

try {
    $zip->NewZip('original.zip');

    $charset = 'utf-8';

    $zip->AddString('a.txt', 'Contents of file A', $charset);

    $zip->AddString('b.txt', 'Contents of file B', $charset);

    $zip->AddString('c.txt', 'Contents of file C', $charset);

    // Write the ZIP archive to disk.
    //
    // The ZIP now contains:
    //
    //     a.txt
    //     b.txt
    //     c.txt
    //
    $zip->WriteZipAndClose();

    // ------------------------------------------------------------
    // Open the existing ZIP archive for modification.

    $zip2 = new Zip();

    $zip2->OpenZip('original.zip');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// Find the entry named "b.txt".
$entry = new ZipEntry();

$success = $zip2->EntryOf('b.txt', $entry);
if (!$success) {
    echo $zip2->LastErrorText, "\n";
    exit;
}

// Remove the entry from the in-memory ZIP object.
//
// At this point, the original ZIP file on disk is unchanged.
// The deletion takes effect only after WriteZip or
// WriteZipAndClose is called.
try {
    $zip2->DeleteEntry($entry);

    // Write the modified ZIP archive to a new file.
    $zip2->FileName = 'modified.zip';

    $zip2->WriteZipAndClose();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// The modified ZIP now contains:
//
//     a.txt
//     c.txt
//

echo "ZIP archive updated successfully.\n";