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

<?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 $return_array = array(); // 返回带有MAC地址的字串数组    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 = $_SERVER["WINDIR"]."\system32\ipconfig.exe";            if ( is_file($ipconfig) )                @exec($ipconfig." /all", $this->return_array);            else                @exec($_SERVER["WINDIR"]."\system\ipconfig.exe /all", $this->return_array);            return $this->return_array;        }    }    function forLinux(){        @exec("ifconfig -a", $this->return_array);        return $this->return_array;    }}//方法使用$mac = new GetMacAddr(PHP_OS);echo $mac->mac_addr;?>