Unzip Selected Files from a Zip Archive

Demonstrates how to iterate over the files contained within a .zip and unzip specific files.

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;
}

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

$unzipDir = 'c:/temp/unzipDir';

//  Get the number of files and directories in the .zip
$n = $zip->NumEntries;
print $n . "\n";

for ($i = 0; $i <= $n - 1; $i++) {

    // entry is a Chilkat.ZipEntry2
    $entry = $zip->GetEntryByIndex($i);
    if ($entry->IsDirectory == false) {
        //  (the filename may include a path)
        print $entry->fileName() . "\n";

        //  Your application may choose to unzip this entry
        //  based on the filename.
        //  If the entry should be unzipped, then call Extract(unzipDir)
        $success = $entry->Extract($unzipDir);
        if ($success != true) {
            print $entry->lastErrorText() . "\n";
            exit;
        }

    }

}

?>