PHP获取服务器的mac地址类

PHP获取服务器的mac地址类，不是客户端的。

 <?php 

 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;
         }

 }
 ?>

使用方法

include 'Getmac.php';
$mac = new GetMacAddr(PHP_OS);
echo $mac->mac_addr;