PHP获取MAC地址

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;  
?>