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流程結(jié)構(gòu)

三個(gè)靜態(tài)頁

首頁效果圖

注冊(cè)頁面效果圖

登錄頁面效果圖

使用cookie實(shí)現(xiàn)會(huì)話控制

首頁index.php源碼

  1. <?php
  2. if (filter_has_var(INPUT_COOKIE, 'user')) {
  3.     $user = unserialize(filter_input(INPUT_COOKIE, 'user'));
  4. }
  5. ?>
  6. <!DOCTYPE html>
  7. <html lang="zh-CN">
  9. <head>
  10.     <meta charset="utf-8">
  11.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  12.     <meta name="viewport" content="width=device-width, initial-scale=1">
  13.     <!-- 上述3個(gè)meta標(biāo)簽*必須*放在最前面，任何其他內(nèi)容都*必須*跟隨其后！ -->
  14.     <title>網(wǎng)站首頁</title>
  16.     <!-- Bootstrap -->
  17.     <link rel="stylesheet" href="./css/index.css">
  19. </head>
  21. <body>
  22.     <nav>
  23.         <div class="container">
  24.             <a href="">我的網(wǎng)站</a>
  25.             <span>
  26.                 <?php if (isset($user)) : ?>
  27.                     <span><?php echo $user['user']; ?></span>
  28.                     <a href="handle.php?action=logout">退出</a>
  29.                 <?php else : ?>
  30.                     <a href="login.php">登錄</a>
  31.                 <?php endif; ?>
  32.             </span>
  33.         </div>
  34.     </nav>
  35. </body>
  36. </html>

登錄頁面 login.php源碼

  1. <?php
  2. if (filter_has_var(INPUT_COOKIE, 'user')) {
  3.     exit('<script> alert("已經(jīng)登錄請(qǐng)不要重復(fù)登錄！"); location.href = "index.php";</script>');
  4. }
  5. ?>
  6. <!DOCTYPE html>
  7. <html lang="zh-CN">
  9. <head>
  10.     <meta charset="utf-8">
  11.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  12.     <meta name="viewport" content="width=device-width, initial-scale=1">
  13.     <!-- 上述3個(gè)meta標(biāo)簽*必須*放在最前面，任何其他內(nèi)容都*必須*跟隨其后！ -->
  14.     <title>用戶登錄</title>
  16.     <!-- Bootstrap -->
  17.     <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
  18.     <link rel="stylesheet" href="./css/style.css">
  20. </head>
  22. <body>
  24.     <form class="form-horizontal" method="POST" action="handle.php?action=login">
  25.         <div class="col-sm-12 title">
  26.             <h3>用戶登錄</h3>
  27.         </div>
  28.         <div class="form-group">
  29.             <label for="email" class="col-sm-4 control-label">郵&nbsp;&nbsp;&nbsp;箱：</label>
  30.             <div class="col-sm-8">
  31.                 <input type="email" name="email" class="form-control" id="email" placeholder="請(qǐng)輸入郵箱">
  32.             </div>
  33.         </div>
  34.         <div class="form-group">
  35.             <label for="password" class="col-sm-4 control-label">密&nbsp;&nbsp;&nbsp;碼：</label>
  36.             <div class="col-sm-8">
  37.                 <input type="password" name="password" class="form-control" id="password" placeholder="請(qǐng)輸入密碼">
  38.             </div>
  39.         </div>
  40.         <div class="form-group">
  41.         </div>
  42.         <div class="form-group">
  43.             <div class="col-sm-12">
  44.                 <button type="submit" class="btn btn-info btn-block">登錄</button>
  45.             </div>
  46.         </div>
  47.         <span><a href="register.php">還沒有賬號(hào)，注冊(cè)一個(gè)。</a></span>
  48.     </form>
  49. </body>
  51. </html>

注冊(cè)頁面register.php源碼

  1. <!DOCTYPE html>
  2. <html lang="zh-CN">
  4. <head>
  5.     <meta charset="utf-8">
  6.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  7.     <meta name="viewport" content="width=device-width, initial-scale=1">
  8.     <!-- 上述3個(gè)meta標(biāo)簽*必須*放在最前面，任何其他內(nèi)容都*必須*跟隨其后！ -->
  9.     <title>注冊(cè)新用戶</title>
  11.     <!-- Bootstrap -->
  12.     <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
  13.     <link rel="stylesheet" href="./css/style.css">
  15. </head>
  17. <body>
  19.     <form class="form-horizontal" method="POST" action="handle.php?action=register">
  20.         <div class="col-sm-12 title">
  21.             <h3>注冊(cè)新用戶</h3>
  22.         </div>
  23.         <div class="form-group">
  24.             <label for="user" class="col-sm-4 control-label">用戶名：</label>
  25.             <div class="col-sm-8">
  26.                 <input type="text" name="user" class="form-control" id="user" placeholder="Email">
  27.             </div>
  28.         </div>
  29.         <div class="form-group">
  30.             <label for="email" class="col-sm-4 control-label">郵&nbsp;&nbsp;&nbsp;箱：</label>
  31.             <div class="col-sm-8">
  32.                 <input type="text" name="email" class="form-control" id="email" placeholder="Email">
  33.             </div>
  34.         </div>
  35.         <div class="form-group">
  36.             <label for="password" class="col-sm-4 control-label">密&nbsp;&nbsp;&nbsp;碼：</label>
  37.             <div class="col-sm-8">
  38.                 <input type="password" name="password" class="form-control" id="password" placeholder="Password">
  39.             </div>
  40.         </div>
  41.         <div class="form-group">
  42.             <label for="repassword" class="col-sm-4 control-label">重復(fù)密碼：</label>
  43.             <div class="col-sm-8">
  44.                 <input type="password" class="form-control" id="repassword" placeholder="Email">
  45.             </div>
  46.         </div>
  47.         <div class="form-group">
  48.         </div>
  49.         <div class="form-group">
  50.             <div class="col-sm-12">
  51.                 <button type="submit" class="btn btn-info btn-block">登錄</button>
  52.             </div>
  53.         </div>
  54.         <span><a href="login.php">已經(jīng)有帳號(hào)了，直接登錄。</a></span>
  55.     </form>
  56. </body>
  58. </html>

控制頁面 haddle.php源碼

  1. <?php
  3. //用戶數(shù)據(jù)組
  4. $users = [
  5.     ['id' => 1, 'user' => 'admin', 'email' => 'admin@qq.com', 'password' => '7c4a8d09ca3762af61e59520943dc26494f8941b'],
  6.     ['id' => 2, 'user' => 'php', 'email' => 'php@qq.com', 'password' => '7c4a8d09ca3762af61e59520943dc26494f8941b']
  7. ];
  9. //來源頁面判斷
  10. //來源頁面白名單組
  11. $allowUrl = ['index.php', 'login.php', 'register.php'];
  12. //獲取當(dāng)前訪問來源地址文件名
  13. $currentUrl = basename(filter_input(INPUT_SERVER, 'HTTP_REFERER'));
  14. //判斷是否再白名單內(nèi)
  15. if (!in_array($currentUrl, $allowUrl)) {
  16.     exit('非法請(qǐng)求地址');
  17. }
  19. //獲取當(dāng)前url訪問action參數(shù)值
  20. $action = filter_input(INPUT_GET, 'action', FILTER_SANITIZE_STRING);
  21. //抓換成小寫
  22. $action = strtolower($action);
  24. switch ($action) {
  25.     case 'login':
  26.         if (filter_input(INPUT_SERVER, 'REQUEST_METHOD') === 'POST') {
  27.             $email = filter_var(filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL), FILTER_SANITIZE_EMAIL);
  28.             $password = sha1(filter_input(INPUT_POST, 'password'));
  29.             // echo $email,$password;
  30.             $result = array_filter($users, function ($user) use ($email, $password) {
  31.                 return $email === $user['email'] && $password === $user['password'];
  32.             });
  33.             // print_r($result);die;
  34.             if (count($result) === 1) {
  35.                 setcookie('user', serialize(array_pop($result)));
  36.                 exit('<script> alert("登錄成功"); location.href = "index.php";</script>');
  37.             } else {
  38.                 exit('<script> alert("登錄失敗，用戶名或者密碼錯(cuò)誤，請(qǐng)重新登錄"); location.href = "login.php";</script>');
  39.             }
  40.         } else {
  41.             exit('非法請(qǐng)求！');
  42.         }
  43.         break;
  44.     case 'register':
  45.         if (filter_input(INPUT_SERVER, 'REQUEST_METHOD') === 'POST') {
  46.             $id = 3;
  47.             $user = filter_input(INPUT_POST, 'user');
  48.             $email = filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL);
  49.             $password = sha1(filter_input(INPUT_POST, 'password'));
  50.             // echo $id,$user,$email,$password;
  51.             $data = compact('id', 'user', 'email', 'password');
  52.             array_push($users, $data);
  53.                 print_r($users);
  54.                 exit('<script> alert("用戶名注冊(cè)成功"); location.href = "login.php";</script>');
  55.         }
  56.         break;
  57.     case 'logout':
  58.         if (filter_input(INPUT_COOKIE, 'user')) {
  59.             setcookie('user', null, time() - 3600);
  60.             exit('<script> alert("退出登錄");location.href = "index.php";</script>');
  61.         }
  62.         break;
  63.     default:
  64.         exit('未定義變量');
  65. }

兩個(gè)css源碼

index.css

  1. * {
  2.     margin: 0;
  3.     padding: 0;
  4. }
  6. nav {
  7.     background-color: #424242;
  8.     height: 50px;
  9. }
  11. nav>.container {
  12.     max-width: 1200px;
  13.     margin: auto;
  14.     height: 50px;
  15.     font-size: 16px;
  16.     display: flex;
  17.     justify-content: space-between;
  18.     align-items: center;
  19. }
  21. a {
  22.     color: #fff;
  23.     text-decoration: none;
  24. }

style.css

  1. body {
  2.     display: flex;
  3.     justify-content: center;
  4.     margin-top: 150px;
  5.     background-color: #eee;
  6. }
  8. form {
  9.     width: 400px;
  10.     border: 1px solid #ddd;
  11.     padding: 20px 50px;
  12.     background-color: #fff;
  13.     border-radius: 3px;
  14.     box-shadow: 1px 1px 2px #888;
  15. }
  17. .title {
  18.     display: flex;
  19.     justify-content: center;
  20.     margin-bottom: 20px;
  21. }

session實(shí)現(xiàn)會(huì)話控制

index.php源碼

  1. <?php
  2. session_start();
  3. if(isset($_SESSION['user'])){
  4.     $user = $_SESSION['user'];
  5. }
  6. ?>
  7. <!DOCTYPE html>
  8. <html lang="zh-CN">
  10. <head>
  11.     <meta charset="utf-8">
  12.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  13.     <meta name="viewport" content="width=device-width, initial-scale=1">
  14.     <!-- 上述3個(gè)meta標(biāo)簽*必須*放在最前面，任何其他內(nèi)容都*必須*跟隨其后！ -->
  15.     <title>網(wǎng)站首頁</title>
  17.     <!-- Bootstrap -->
  18.     <link rel="stylesheet" href="./css/index.css">
  20. </head>
  22. <body>
  23.     <nav>
  24.         <div class="container">
  25.             <a href="">我的網(wǎng)站</a>
  26.             <span>
  27.                 <?php if (isset($user)) : ?>
  28.                     <span><?php echo $user['user']; ?></span>
  29.                     <a href="handle.php?action=logout">退出</a>
  30.                 <?php else : ?>
  31.                     <a href="login.php">登錄</a>
  32.                 <?php endif; ?>
  33.             </span>
  34.         </div>
  35.     </nav>
  36. </body>
  37. </html>

login.php

  1. <?php
  2. session_start();
  3. if(isset($_SESSION['user'])){
  4.     exit('<script> alert("已經(jīng)登錄請(qǐng)不要重復(fù)登錄！"); location.href = "index.php";</script>'); 
  5. }
  7. ?>
  8. <!DOCTYPE html>
  9. <html lang="zh-CN">
  11. <head>
  12.     <meta charset="utf-8">
  13.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  14.     <meta name="viewport" content="width=device-width, initial-scale=1">
  15.     <!-- 上述3個(gè)meta標(biāo)簽*必須*放在最前面，任何其他內(nèi)容都*必須*跟隨其后！ -->
  16.     <title>用戶登錄</title>
  18.     <!-- Bootstrap -->
  19.     <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
  20.     <link rel="stylesheet" href="./css/style.css">
  22. </head>
  24. <body>
  26.     <form class="form-horizontal" method="POST" action="handle.php?action=login">
  27.         <div class="col-sm-12 title">
  28.             <h3>用戶登錄</h3>
  29.         </div>
  30.         <div class="form-group">
  31.             <label for="email" class="col-sm-4 control-label">郵&nbsp;&nbsp;&nbsp;箱：</label>
  32.             <div class="col-sm-8">
  33.                 <input type="email" name="email" class="form-control" id="email" placeholder="請(qǐng)輸入郵箱">
  34.             </div>
  35.         </div>
  36.         <div class="form-group">
  37.             <label for="password" class="col-sm-4 control-label">密&nbsp;&nbsp;&nbsp;碼：</label>
  38.             <div class="col-sm-8">
  39.                 <input type="password" name="password" class="form-control" id="password" placeholder="請(qǐng)輸入密碼">
  40.             </div>
  41.         </div>
  42.         <div class="form-group">
  43.         </div>
  44.         <div class="form-group">
  45.             <div class="col-sm-12">
  46.                 <button type="submit" class="btn btn-info btn-block">登錄</button>
  47.             </div>
  48.         </div>
  49.         <span><a href="register.php">還沒有賬號(hào)，注冊(cè)一個(gè)。</a></span>
  50.     </form>
  51. </body>
  53. </html>

控制頁面handle.php源碼

  1. <?php
  2. session_start();
  3. //用戶數(shù)據(jù)組
  4. $users = [
  5.     ['id' => 1, 'user' => 'admin', 'email' => 'admin@qq.com', 'password' => '7c4a8d09ca3762af61e59520943dc26494f8941b'],
  6.     ['id' => 2, 'user' => 'php', 'email' => 'php@qq.com', 'password' => '7c4a8d09ca3762af61e59520943dc26494f8941b']
  7. ];
  9. //來源頁面判斷
  10. //來源頁面白名單組
  11. $allowUrl = ['index.php', 'login.php', 'register.php'];
  12. //獲取當(dāng)前訪問來源地址文件名
  13. $currentUrl = basename(filter_input(INPUT_SERVER, 'HTTP_REFERER'));
  14. //判斷是否再白名單內(nèi)
  15. if (!in_array($currentUrl, $allowUrl)) {
  16.     exit('非法請(qǐng)求地址');
  17. }
  19. //獲取當(dāng)前url訪問action參數(shù)值
  20. $action = filter_input(INPUT_GET, 'action', FILTER_SANITIZE_STRING);
  21. //抓換成小寫
  22. $action = strtolower($action);
  24. switch ($action) {
  25.     case 'login':
  26.         if (filter_input(INPUT_SERVER, 'REQUEST_METHOD') === 'POST') {
  27.             $email = filter_var(filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL), FILTER_SANITIZE_EMAIL);
  28.             $password = sha1(filter_input(INPUT_POST, 'password'));
  29.             // echo $email,$password;
  30.             $result = array_filter($users, function ($user) use ($email, $password) {
  31.                 return $email === $user['email'] && $password === $user['password'];
  32.             });
  33.             // print_r($result);die;
  34.             if (count($result) === 1) {
  35.                 // setcookie('user', serialize(array_pop($result)));
  36.                 $_SESSION['user'] = array_pop($result);
  37.                 exit('<script> alert("登錄成功"); location.href = "index.php";</script>');
  38.             } else {
  39.                 exit('<script> alert("登錄失敗，用戶名或者密碼錯(cuò)誤，請(qǐng)重新登錄"); location.href = "login.php";</script>');
  40.             }
  41.         } else {
  42.             exit('非法請(qǐng)求！');
  43.         }
  44.         break;
  45.     case 'register':
  46.         if (filter_input(INPUT_SERVER, 'REQUEST_METHOD') === 'POST') {
  47.             $id = 3;
  48.             $user = filter_input(INPUT_POST, 'user');
  49.             $email = filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL);
  50.             $password = sha1(filter_input(INPUT_POST, 'password'));
  51.             // echo $id,$user,$email,$password;
  52.             $data = compact('id', 'user', 'email', 'password');
  53.             array_push($users, $data);
  54.                 print_r($users);
  55.                 exit('<script> alert("用戶名注冊(cè)成功"); location.href = "login.php";</script>');
  56.         }
  57.         break;
  58.     case 'logout':
  59.         if (isset($_SESSION['user'])) {
  60.             // setcookie('user', null, time() - 3600);
  61.             session_destroy();
  62.             exit('<script> alert("退出登錄");location.href = "index.php";</script>');
  63.         }
  64.         break;
  65.     default:
  66.         exit('未定義變量');
  67. }

其他頁面與cookie相同。

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