mysqlphp
<code> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<h1>欢迎来到XXX网</h1>
<form method="post" action="<?php%20echo%20htmlspecialchars(%24_SERVER%5B" php_self>"> <span>邮箱：<input type="text" name="user_email"></span> <span>密码：<input type="text" name="user_pass"></span> <span> <input type="submit" name="submit" value="登陆"></span> <input type="button" onclick="location.href='register.php'" value="注册">
</form> <?php //开始登录if(!isset($_POST['submit'])){exit('非法访问!');}$user_email = htmlspecialchars($_POST['user_email']);$user_pass = htmlspecialchars($_POST['user_pass']);//包含数据库连接文件include('conn.php');//检测用户名及密码是否正确$check_query = mysql_query("select user_id,user_nickname from users where user_email='$user_email' and user_pass='$user_pass' limit 1");if($result = mysql_fetch_array($check_query)){ //登录成功 @ session_start(); $_SESSION['user_id'] = $result['user_id']; $_SESSION['user_email'] = $user_email; echo $result['user_nickname'].'，欢迎你！---<a href="my.php">用户中心 '; echo '<a href="index.php?action=logout">注销</a><br>'; exit;} //登陆失败else {exit('登录失败！点击此处 <a href="javascript:history.back(-1);">返回</a> 重试');} //注销登录 if ( $_GET['action'] == "logout" && isset($_SESSION['user_id']) ){ echo '注销成功！点击此处 <a href="login.html">登录</a>'; unset($_SESSION['user_id']); unset($_SESSION['user_email']); exit;}?></code>
