php获取服务器端mac和客户端mac的地址支持WIN/LINUX

<?php
/**
获取网卡的mac地址原码；目前支持win/linux系统
获取机器网卡的物理（mac）地址
**/
class getmacaddr{
var $result = array(); // 返回带有mac地址的字串数组
var $macaddr;
/*构造*/
function __construct($ostype){
switch ( strtolower($ostype) ){
case "unix": break;
case "solaris": break;
case "aix": break;
case "linux": {
$this->for_linux_os();
}break;
default: {
$this->for_windows_os();
}break;
}
$temp_array = array();
foreach($this->result 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->macaddr = $temp_array[0];
break;
}
}
unset($temp_array);
return $this->macaddr;
}
/*linux系统中获取方法*/
function for_linux_os(){
@exec("ifconfig -a", $this->result);
return $this->result;
}
/*win系统中的获取方法*/
function for_windows_os(){
@exec("ipconfig /all", $this->result);
if ( $this->result ) {
return $this->result;
} else {
$ipconfig = $_server["windir"]."\system32\ipconfig.exe";
if(is_file($ipconfig)) {
@exec($ipconfig." /all", $this->result);
} else {
@exec($_server["windir"]."\system\ipconfig.exe /all", $this->result);
return $this->result;
}
}
}
}
?>

@exec("arp -a",$array); //执行arp -a命令，结果放到数组$array中
foreach($array as $value){
//匹配结果放到数组$mac_array
if(strpos($value,$_server["remote_addr"]) && preg_match("/(:?[0-9a-f]{2}[:-]){5}[0-9a-f]{2}/i",$value,$mac_array)){
$mac = $mac_array[0];
break;
}
}
echo $mac;