how to process batch of rar files archived at one time using single php script

[hyungKim]

Am using this script but am unable unrar the rar files please any one help me...

<?php
for ($k=0;$k<6;$k++)
$entries=array("file1.rar","file2.rar","file3.rar","file4.rar");

$rar_file = rar_open('$entries[k].rar') or die("Can't open Rar archive");

$entries = rar_list($rar_file);


foreach ($entries as $entry) 
{
    echo 'Filename: ' . $entry->getName() . "\n";
    echo 'Packed size: ' . $entry->getPackedSize() . "\n";
    echo 'Unpacked size: ' . $entry->getUnpackedSize() . "\n";

    $entry->extract('D:\Projects\location');
}

rar_close($rar_file);

?>