Unzip Encrypted Text into a String Variable

Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable.

Download Chilkat 32-bit Zip ActiveX (.msi) (includes objects for .zip, .gz, .bz2, and .Z)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

<?php

$zip = new COM("Chilkat.Zip2");

//  Any string unlocks the component for the 1st 30-days.
$success = $zip->UnlockComponent('Anything for 30-day trial');
if ($success != true) {
    print $zip->lastErrorText() . "\n";
    exit;
}

//  Set the password required for decrypting.
$zip->DecryptPassword = 'myPassword';

$success = $zip->OpenZip('encrypted.zip');
if ($success != true) {
    print $zip->lastErrorText() . "\n";
    exit;
}

//  Locate the file within the Zip to be unzipped into a string variable:

// entry is a Chilkat.ZipEntry2
$entry = $zip->FirstMatchingEntry('*.csv');
if (!(is_null($entry))) {

    //  There are a few different InflateToString methods.
    //  InflateToString allows you to control line-endings LF-only vs. CRLF
    //  InflateToString2 returns the line-endings unmodified.
    //  Both InflateToString and InflateToString2 assume the
    //  data consists of ANSI characters.
    //  The InflateToString3 method allows for text stored in different
    //  character encodings to be returned as a string

    //  This example uses InflateToString2 -- line endings are
    //  unmodified and the text is simple ANSI...

    $strCsv = $entry->inflateToString2();
    print $strCsv . "\n";

}
else {
    print 'No matching entry found!' . "\n";
}


?>