Unzip a Single File by Index

Unzip a single file by index.

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

<?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;
}

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

//  How many files and directory entries are in this .zip?

$n = $zip->NumEntries;
print 'Num entries = ' . $n . "\n";

//  Let's say we want to unzip the 3rd entry:

$entry = $zip->GetEntryByIndex(2);
if (is_null($entry)) {
    print 'Index out of range!' . "\n";
    exit;
}
else {
    //  Unzip it to C:/myTempDir
    $success = $entry->ExtractInto('c:/myTempDir');
    if ($success != true) {
        print $entry->lastErrorText() . "\n";
        exit;
    }
    else {
        print 'Extracted 1 file!' . "\n";
    }

}

?>