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;  ?> 
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