mac地址绑定

1.导入第三方类库：

<?php
/**
 * FILE_NAME : Macaddr.php
 * linux平台获取服务器mac地址
 * @filesource
*/
class Macaddr {

    private static $return_array = array(); //返回带有MAC地址的字串数组
    private static $mac_addr;                //MAC 地址
    
    public function __construct() {
        echo 1;
    }
    
    /**
     * 获取当前机器的MAC地址
     */
    public static function getMac() {
        $os_type = PHP_OS;
        switch ( strtolower($os_type) ) { 
            case "linux": 
                self::forLinux(); 
                break; 
            case "solaris": 
                break; 
            case "unix": 
                break; 
            case "aix": 
                break; 
            default: 
                self::forWindows(); 
                break;
        }
        
        $temp_array = array();
        foreach (self::$return_array as $row) {
            foreach ($row 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, $temp_array) ) {
                    self::$mac_addr = $temp_array[0];
                    break;
                }
            }
            if (!empty(self::$mac_addr)) {
                break;
            }
        }
        unset($temp_array);
        
        return self::$mac_addr;
    }
    
    private static function forWindows(){
        @exec("ipconfig /all", $macInfo);
        if ( $macInfo ) {
            self::$return_array[] = $macInfo;
        } else {
            $ipconfig = $_SERVER["WINDIR"]."\system32\ipconfig.exe";
            if ( is_file($ipconfig) ) {
                @exec($ipconfig." /all", $macInfo);
            }else {
                @exec($_SERVER["WINDIR"]."\system\ipconfig.exe /all", $macInfo);
            }
            
            self::$return_array[] = $macInfo;
        }
        return self::$return_array;
    }
    
    private static function forLinux(){
        @exec("/sbin/ifconfig", $macInfo);
        if ( $macInfo ) {
            self::$return_array[] = $macInfo;
        } else {
            $file_arr = array('ifcfg-eth0', 'ifcfg-eth1', 'ifcfg-eth2', 'ifcfg-eth3', 'ifcfg-em1', 'ifcfg-em2', 'ifcfg-em3', 'ifcfg-em4');
            foreach ($file_arr as $file) {
                if (file_exists('/etc/sysconfig/network-scripts/'.$file)) {
                    self::$return_array[] = file('/etc/sysconfig/network-scripts/'.$file);
                }
            }
        }
        
        return self::$return_array;
    }
}

/* End of file config.php */
/* Location: ./system/application/config/config.php */
?>

2.CI中使用示例：

<?php

class A extends CI_Controller {
public function checkMac()
{
　　$this->load->library('Macaddr');//导入类库
　　$currentMac = Macaddr::getMac();
　　$macList = array();//在配置文件中写死

　　if( !empty($currentMac) && !in_array($currentMac, $macList) ) {
　　　　exit();
　　}

}

}