php获取网卡MAC地址

使用php调用系统命令，获取网卡的mac地址！

<?php
class GetMacAddr
{
var $return_array = array(); // 返回带有MAC地址的字串数组
var $mac_addr=array();

function GetMacAddr()
{
switch (strtolower(PHP_OS) )
{
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[] = $temp_array[0];
}
}
unset($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;
}
}

$mac = new GetMacAddr();
echo "<pre>";
print_r( $mac->mac_addr);
?>

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