php: ftp raw list desglosea

ftp_raw_list.php

<?php
$params = array
(
        'host' => '127.0.0.1',
        'port' => 21,
        'user' => 'ftpuser',
        'passwd' => 'ftpuser'
);
$conn_id = ftp_connect($params['host'], $params['port']);
$login_result = ftp_login($conn_id, $params['user'], $params['passwd']);
if($login_result)
{
        $keys = array
        (
                1 => 'permissions',
                2 => 'links',
                3 => 'owner',
                4 => 'group',
                5 => 'size',
                6 => 'date',
                7 => 'filename'
        );

        // adibidez: 'drwx------    3 999      1001         4096 Jan 14 11:00 public html';
        $regex = "/^([^\s+]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([\w]+\s+[0-9]+\s+[0-9\:]+)\s+([^$]+)$/";
        $contents = ftp_rawlist($conn_id, ".");

        $resources = array();
        foreach($contents as $c)
        {
                preg_match($regex, $c, $m);
                if($m)
                {
                        $r = array();
                        for($i=1;$i<count($m);$i++)
                                $r[$keys[$i]] = $m[$i];

                        // hutsuneak hutsune bakar batean bihurtu
                        $r['date'] = preg_replace("/\s+/", ' ', $r['date']);
                        $resources[] = $r;
                }
        }
        print_r($resources);
}