JS配合PHP获取客户端MAC地址

<SCRIPT language="JScript" event="OnCompleted(hResult,pErrorObject, pAsyncContext)" for="foo">
document.forms[0].lbMacAddr.value=unescape(MACAddr);
</SCRIPT>
<SCRIPT language="JScript" event="OnObjectReady(objObject,objAsyncContext)" for="foo">
if(objObject.IPEnabled != null && objObject.IPEnabled != "undefined" && objObject.IPEnabled == true && objObject.MACAddress != null && objObject.MACAddress != "undefined")MACAddr = objObject.MACAddress;
</SCRIPT>
<OBJECT id="locator" classid="CLSID:76A64158-CB41-11D1-8B02-00600806D9B6" >
</OBJECT>
<OBJECT id="foo" classid="CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223" >
</OBJECT>
<SCRIPT language="JScript">
var service = locator.ConnectServer();
var MACAddr ;
var IPAddr ;
var DomainAddr;
var sDNSName;
service.Security_.ImpersonationLevel=3;
service.InstancesOfAsync(foo, 'Win32_NetworkAdapterConfiguration');
</SCRIPT>

php:
<?php
class GetMacAddr
{
var $return_array = array();
var $mac_addr;

function GetMacAddr($os_type)
{
switch ( strtolower($os_type) )
{
case "linux":
$this->forLinux();
break;
case "solaris":
break;
case "unix":
break;
case "aix":
break;
default:
$this->forWindows();
break;
}

$temp_array = array();
foreach ( $this->return_array as $value )
{
if ( preg_match( "/[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f]/i", $value, $temp_array ) )
{
$this->mac_addr = $temp_array[0];
break;
}
}
unset($temp_array);
return $this->mac_addr;
}
function forWindows()
{
@exec("ipconfig /all", $this->return_array);
if ( $this->return_array )
return $this->return_array;
else{
$ipconfig = $_SERVER["WINDIR"]."system32ipconfig.exe";
if ( is_file($ipconfig) )
@exec($ipconfig." /all", $this->return_array);
else
@exec($_SERVER["WINDIR"]."systemipconfig.exe /all", $this->return_array);
return $this->return_array;
}
}
function forLinux()
{
@exec("ifconfig -a", $this->return_array);
return $this->return_array;
}
}
?>
<?
$mac = new GetMacAddr(PHP_OS);
echo $mac->mac_addr;
//获取客户端
/*$result=`arp -a $REMOTE_ADDR`;
//$result=`nbtstat -a $REMOTE_ADDR`;
print_r($result);*/
?>