(PHP ActiveX) Append Files to Existing Zip w/out Rewriting Entire Zip

Demonstrates how to use the QuickAppend method to append files to an existing .zip archive. This method works by editing the existing .zip -- it does not rewrite or recompress the contents of the existing .zip. It is the fastest way to append additional files to a pre-existing large .zip archive. Note: The QuickAppend method is new and available in the pre-release downloads, or in official releases dated after 6-October-2007.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Zip')
$zip = new COM("Chilkat.Zip");

// The NewZip method only initializes the Zip object -- it does
// not create or write a .zip file.
$success = $zip->NewZip('notUsed.zip');
if ($success != 1) {
    print $zip->LastErrorText . "\n";
    exit;
}

// Add a reference to a file.  This is the file that will
// be added to a pre-existing .zip archive.  
// Note: this does not read or compress the file contents --
// it simply adds a reference to the zip object.
$saveExtraPath = 0;
$success = $zip->AppendOneFileOrDir('something.dat',$saveExtraPath);
if ($success != 1) {
    print $zip->LastErrorText . "\n";
    exit;
}

// Appends the contents of the zip object to the preExisting.zip
// zip archive.  preExisting.zip is opened, and the files
// referenced by this zip object are streamed in, compressed,
// and appended to the end of the archive.
$success = $zip->QuickAppend('preExisting.zip');
if ($success != 1) {
    print $zip->LastErrorText . "\n";
    exit;
}

print 'Success!' . "\n";

// Note: Additional files, directory trees, or in-memory data
// can be appended by calling AppendOneFileOrDir, AppendFiles,
// AppendString, AppendData, etc. multiple times.
// Whatever files and/or in-memory data that are referenced by
// this zip object will be appended to preExisting.zip when
// QuickAppend is called

?>