How to obtain the network card MAC address in php (supports WIN and LINUX systems)

Example, php gets the physical address of the network card, which is the mac address.

/**
Get the MAC address of the network card; currently supports WIN/LINUX system
Get the physical (MAC) address of the machine's network card
**/
class GetMacAddr{
var $return_array = array(); // Return the band String array with MAC address
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 $value ){
< ;p>if (
preg_match("/[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]" ."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f ][0-9a-f][:-]"."[0-9a-f][0-9a-f]/i",$value,
$temp_array ) ){
$this->mac_addr = $temp_array[0];
break;
} bbs.it-home.org
}
unset($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;
}
}
@exec("ifconfig -a", $this->return_array);
return $this->return_array;
}
}
//Method Use
$mac = new GetMacAddr(PHP_OS);
echo $mac->mac_addr; //The real MAC address of the machine, please comment out
?>