PHP Extension

Unzip an AES Encrypted Text File directly into a String Variable

See more Zip Examples

A common need is to unzip from an AES encrypted Zip archive directly into a string variable, such that the unencrypted file never resides on disk, even temporarily. This example shows how to do it. PHP Extension

<?php

include("chilkat.php");

$success = false;

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

$zip = new CkZip();

// This example opens a WinZip-compatible AES encrypted
// .zip that contains a single file: hamlet.xml.

// It decrypts and unzips hamlet.xml directly into a string
// variable.
$zip->SetPassword('secret');
$success = $zip->OpenZip('qa_data/hamlet.zip');
if ($success == false) {
    print $zip->lastErrorText() . "\n";
    exit;
}

$entry = new CkZipEntry();
$success = $zip->EntryOf('hamlet.xml',$entry);
if ($success == false) {
    print $zip->lastErrorText() . "\n";
    exit;
}

// lineEndingBehavior:
// 0 = leave unchanged.
// 1 = convert all to bare LF's
// 2 = convert all to CRLF's
$lineEndingBehavior = 0;
$srcCharset = 'utf-8';
$xmlText = $entry->unzipToString($lineEndingBehavior,$srcCharset);
print $xmlText . "\n";

?>