0,
            'msg'   =>  'successful'
        ];
    }
    else{
        $data = [
            'code'      =>  -1012,
            'err_msg'   =>  '用户名或密码错误!'
        ];
        
        
    }
    exit(json_encode($data));
}
//如果cookie的值和计算的key不一致,则没有权限
// if ( ($_SERVER['PHP_AUTH_PW'] !== $password) || ($_SERVER['PHP_AUTH_USER'] !== $username) ){
//     header('WWW-Authenticate: Basic realm="Please verify."');
//     header('HTTP/1.0 401 Unauthorized');
//     exit("
认证失败!
");
// }
// else{
    
//     $key = md5($username.$password.$ip.'onenav');
//     //设置cookie
//     setcookie("key", $key, time()+7 * 24 * 60 * 60,"/");
//     header('location:index.php?c=admin');
// }
//获取访客IP
function getIP() { 
if (getenv('HTTP_CLIENT_IP')) { 
$ip = getenv('HTTP_CLIENT_IP'); 
} 
elseif (getenv('HTTP_X_FORWARDED_FOR')) { 
    $ip = getenv('HTTP_X_FORWARDED_FOR'); 
} 
    elseif (getenv('HTTP_X_FORWARDED')) { 
    $ip = getenv('HTTP_X_FORWARDED'); 
} 
elseif (getenv('HTTP_FORWARDED_FOR')) { 
$ip = getenv('HTTP_FORWARDED_FOR'); 
} 
elseif (getenv('HTTP_FORWARDED')) { 
$ip = getenv('HTTP_FORWARDED'); 
} 
else { 
    $ip = $_SERVER['REMOTE_ADDR']; 
} 
    return $ip; 
} 
// 载入后台登录模板
require('templates/admin/login.php');