请输入账号和密码");
define("ALERT_ERROR", "用户名或密码错误
");
$isNoLogin = (!isset($_SESSION["isLogin"]) || $_SESSION["isLogin"] == false);
$alertInfo = ALERT_MSG;
if (!$isNoLogin) {
echo "";
exit();
} else if ($isNoLogin && !empty($userName) && !empty($password)) {
if ($password != GM_PWD || !$userName == GM_USER) {
$alertInfo = ALERT_ERROR;
} else {
$_SESSION["isLogin"] = true;
$_SESSION["GM_USER"] = $userName;
echo "";
exit();
}
} else {
$alertInfo = ALERT_MSG;
}
?>