PHP takes MAC address with absolute IP

PHP takes MAC address and absolute IP
/*
* Created on June 18, 2010
*
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*/
Unset ($ONLINEIP);

if (getenv (' http_client_ip ')) {
$onlineip = getenv (' http_client_ip ');
} elseif (getenv (' http_x_forwarded_for ')) {
$onlineip = getenv (' http_x_forwarded_for ');
} elseif (getenv (' remote_addr ')) {
$onlineip = getenv (' remote_addr ');
} else {
$onlineip = $HTTP _server_vars[' remote_addr ');
}
Echo $onlineip;

@exec ("Ipconfig/all", $array);
for ($Tmpa; $Tmpa<>
if (eregi ("Physical", $array [$Tmpa])) {
$mac =explode (":", $array [$Tmpa]);
}
}
echo $mac [1];

?>

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