登入頁面
login.html 負責收集使用者填寫的登入資訊
<html> <head>使用者登入</head> <form name="LoginForm" method="post" action="login.php" onSubmit="return InputCheck(this)"> <p> <label for="username" class="label">使用者名稱:</label> <input id="username" name="username" type="text" class="input" /> <p/> <p> <label for="password" class="label">密 碼:</label> <input id="password" name="password" type="password" class="input" /> <p/> <p> <input type="submit" name="submit" value=" 確 定 " class="left" /> </p> </form> </html>
登入處理
login.php 負責處理使用者登入與退出動作。
<?php //登入 if(!isset($_POST['submit'])){ exit('非法訪問!'); } $username = htmlspecialchars($_POST['username']); $password = MD5($_POST['password']); //包含資料庫連接檔案 include('conn.php'); //檢測使用者名稱及密碼是否正確 $check_query = mysql_query("select userid from user_list where username='$username' and password='$password' limit 1"); if($result = mysql_fetch_array($check_query)){ //登入成功 session_start(); $_SESSION['username'] = $username; $_SESSION['userid'] = $result['userid']; echo $username,' 歡迎你！進入 <a href="my.php">使用者中心</a><br />'; echo '點擊此處 <a href="login.php?action=logout">登出</a> 登入！<br />'; exit; } else { exit('登入失敗！點擊此處 <a href="javascript:history.back(-1);">返回</a> 重試'); } //登出登入 if($_GET['action'] == "logout"){ unset($_SESSION['userid']); unset($_SESSION['username']); echo '登出登入成功！點擊此處 <a href="login.html">登入</a>'; exit; } ?>
使用者中心
my.php 是使用者中心，作為使用者登入檢測。
<?php session_start(); //檢測是否登入，若沒登入則轉向登入介面 if(!isset($_SESSION['userid'])){ header("Location:login.html"); exit(); } //包含資料庫連接檔案 include('conn.php'); $userid = $_SESSION['userid']; $username = $_SESSION['username']; $user_query = mysql_query("select * from user_list where userid = '$userid' limit 1"); $row = mysql_fetch_array($user_query); echo '使用者資訊：<br />'; echo '使用者ID：',$userid,'<br />'; echo '使用者名稱：',$username,'<br />'; echo '<a href="login.php?action=logout">登出</a> 登入<br />'; ?>
conn.php,用於串連資料庫
<?php $conn = mysql_connect("127.0.0.1","root","") or die("資料庫連結錯誤".mysql_error()); mysql_select_db("info_db",$conn) or die("資料庫訪問錯誤".mysql_error()); mysql_query("set names gb2312"); ?>Start building with 50+ products and up to 12 months usage for Elastic Compute Service
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