//获取表单提交的用户名与密码信息
$userName = isset($_POST['username']) ? $_POST['username'] : '';
$userPwd = isset($_POST['userpwd']) ? $_POST['userpwd'] : '';
//判断用户名和密码是否为空
if ($userName == '') {
show_alert('用户名不能为空!', '/login.php');
}
if ($userPwd == '') {
show_alert('密码不能为空!', '/login.php');
}
//生成SQL语句，执行
$sql = "SELECT * FROM xw_users WHERE uname='{$userName}' AND pwd='{$userPwd}'";
$query = $db->query($sql);
$userInfo = $db->fetch_one($query);
if (empty($userInfo)) {
//没有查找到记录，说明用户名密码错误，提示
show_alert('用户名或密码不正确!', '/login.php');
}
//登录成功，记录已登录标示，然后跳转到首页
$_SESSION['isLogin'] = true;
jump_url('/');
} else {
if ($action == 'logout') {
//执行退出操作
$_SESSION['isLogin'] = false;
jump_url('/');
} else {
//加载首页模版
include APPPATH . '/tpl/login.tpl.php';
}
}
public function jump_with_url($jump_type, $jump_message, $jump_url)
{
$jump_urls = explode("/", $jump_url);
if (count($jump_urls) > 1) {
$jump_url = "index.php?app=" . $jump_urls[0] . "&action=" . $jump_urls[1];
}
jump_url($jump_type, $jump_message, $jump_url, 3);
}
