To unzip any archive on server, just execute following script on your server.
<?php
system('unzip dak.zip');
echo "<p>If you dont see errors, files unzipped successfully";
?>
Here instead of dak.zip, write name of file you wish to unzip.
or if you wish to unzip files to a particular destination, then following code can be used
<?php
$zip = new ZipArchive;
if ($zip->open('dak.zip') === TRUE) {
$zip->extractTo('dest/d1/');
$zip->close();
echo 'ok';
} else {
echo 'failed';
}
?>