function check_valid_user()
{
//see if somebody is logged in and notify them if not
if (isset($_SESSION['valid_user'])) {
echo "Logged in as " . $_SESSION['valid_user'] . "<br/>";
} else {
//they are not logged in
do_html_heading('Problem');
echo 'You are not logged in.<br/>';
do_html_URL('login.php', 'Login');
do_html_footer();
exit;
}
}
function notify_password($username, $new_password)
{
$from = "From: support@rippedandfit.com\r\n";
$mesg = "Your rippedandfit password has been changed to" . $new_password . "\r\n" . "Please change it on next log in!";
if (mail($email, 'rippedandfit login information', $mesg, $from)) {
return true;
} else {
do_html_URL("index.php", "Homepage");
die('Could not send mail');
}
echo 'Your new password has been emailed to you - please change it on next log in!';
do_html_URL("index.php", "Homepage");
}
<?php
//登录验证
require_once 'fns.php';
session_start();
$username = $_POST['username'];
$password = $_POST['password'];
if ($username && $password) {
try {
login($username, $password);
$_SESSION['username'] = $username;
} catch (Exception $e) {
//未能成功登录
do_html_header('problem');
echo '登录失败，请重试';
do_html_URL('index.php', 'Login');
do_html_footer();
exit;
}
}
//登录成功,跳转到user_main.php
header('Location:user_main.php');
l;
try {
//验证所填项目是否为空，；以后做到前台！！！！
if (!filled_out($username) || !filled_out($email)) {
throw new Exception('有表单项未填，请返回重试');
}
//验证两次所填密码是否一致
if ($password != $password2) {
throw new Exception('密码不一致');
}
//判断密码长度是否合理
if (strlen($password) < 6 || strlen($password) > 16) {
throw new Exception('密码必须在6-16个字符之间');
}
//验证邮箱
if (!valid_email($email)) {
throw new Exception("邮箱不合法");
}
//尝试 注册
register($username, $email, $password);
$_SESSION['valid_user'] = $username;
//登录成功显示页面
do_html_header('Registration successful');
echo "注册成功，";
do_html_URL('index.php', '立即登录');
do_html_footer();
} catch (Exception $e) {
do_html_header('Problem');
echo $e->getMessage();
do_html_footer();
exit;
}
if ($result) {
$_SESSION['valid_user'] = $username;
} else {
return false;
}
if (isset($_SESSION['valid_user'])) {
echo "<br />Logged in as " . $_SESSION['valid_user'] . ".<br />";
} else {
//they are not logged in
echo "<br />PROBLEM. You are not logged in.<br />";
do_html_URL('index.php', 'Login');
exit;
}
function do_html_URL($url, $name)
{
//output url as link
?>
<br /><a href="<?php
echo $url;
?>
"><?php
echo $name;
?>
</a><br />
<?php
}
if ($_SESSION['valid_user']) {
do_html_URL("member.php", "Go to member page!!!");
} else {
echo 'Your registration failed! - Please try again';
}
/**
* Created by PhpStorm.
* User: zzy
* Date: 2015/12/21
* Time: 22:32
* 用户登出
*/
//include function files for this application
require_once 'bookmark_fns.php';
session_start();
$old_user = $_SESSION['valid_user'];
//store to test if they *were* logged in
unset($_SESSION['valid_user']);
$result_dest = session_destroy();
//start output html
do_html_header('Logging Out');
if (!empty($old_user)) {
if ($result_dest) {
//if they were logged in and are now logged out
echo 'Logged out.<br/>';
} else {
//they were logged in and could not be logged out
echo 'Could not log you out.<br/>';
}
} else {
//if they weren't logged in but came to this page somehow
echo 'You were not logged in, and so have not been logged out.<br/>';
do_html_URL('login.php', 'Login');
}
do_html_footer();
<?php
//显示投票结果
require_once 'fns.php';
do_html_header('投票结果');
do_html_heading('投票结果');
display_vote_result();
do_html_URL('index.php', '返回主界面');
do_html_footer();
<?php
require_once 'fns.php';
check_is_on();
do_html_header('Home');
do_html_heading('Success, welcome ' . $_SESSION['username'] . '<br>');
do_html_URL('add_topic.php', '添加投票');
do_html_URL('vote.php', '投票');
do_html_URL('show_result.php', '查看投票结果');
display_logout();
do_html_footer();
if (!is_user_voted($user_id, $topic_id)) {
vote($user_id, $topic_id);
//实现在user_topic表中添加项目，记录选票信息
add_vote($topic_id, $ABC);
//在opt表中实现选票数的增加
} else {
// do_html_header('投票失败');
echo $topic_id . "号问题你已经投过票了，不能再投了" . "<br>";
// do_html_URL('user_main.php','返回主界面');
// do_html_footer();
// exit;
}
}
do_html_header('投票完成');
echo "投票完成！" . "<br>";
do_html_URL('user_main.php', '返回主界面');
do_html_footer();
?>
<?php
require_once 'fns.php';
do_html_header('regist');
display_regist_form();
do_html_URL('index.php', '已有账号，立即登录');
do_html_footer();
function login($username, $passwd)
{
//check username and password with db
//if yes return true
//else throw exception
//connect to db
include 'db_fns.php';
if (!$conn) {
die . mysqli_error();
} else {
$username = $_POST['username'];
$passwd = $_POST['passwd'];
$username = stripslashes($username);
$passwd = stripslashes($passwd);
$username = mysqli_real_escape_string($conn, $username);
$passwd = mysqli_real_escape_string($conn, $passwd);
//check if username is unique
$result = mysqli_query($conn, "SELECT username, passwd FROM usertable WHERE username='******' AND passwd=sha1( '" . $passwd . "') ") or die("Query failed." . mysqli_error());
$row = mysqli_num_rows($result);
if ($row == 1) {
session_start();
$_SESSION['valid_user'] = $username;
ob_end_clean();
header("Location: member.php");
exit;
} else {
die('Could not log you in. Username invalid.');
do_html_URL('index.php', 'Login');
exit;
}
}
}