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使用面向对象方法实现用户信息增删改查

程序员文章站 2022-03-07 19:53:25
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auto.php

  1. <?php
  2. spl_autoload_register(
  3. function($className){
  4. // $className 是new的Son这个名字,这个名字是类名,不是文件名
  5. require $className . '.php';
  6. }
  7. );

创建PDO文件 CreatePDO.php

  1. <?php
  2. class CreatePDO{
  3. public static function Create(){
  4. try{
  5. $pdo = new PDO('mysql:host=127.0.0.1;dbname=prodb','root','123456');
  6. }catch(PDOException $e){
  7. // 抛出错误,错误是你可以定义的
  8. echo '数据库连接失败' . $e->getMessage();
  9. }
  10. return $pdo;
  11. }
  12. }

模型文件 User.php

  1. <?php
  2. class User{
  3. public $id;
  4. public $account;
  5. public $password;
  6. public $name;
  7. public $phone;
  8. public $email;
  9. public $createtime;
  10. public $updatetime;
  11. public $state;
  12. }

操作文件 UserContr.php

  1. <?php
  2. require_once "auto.php";
  3. class UserContr{
  4. /**
  5. *添加用户
  6. */
  7. public static function createUser($user){
  8. $sql="INSERT INTO `php_user` SET `account`=? ,`password`=?,";
  9. $sql.="`name`=?,`email`=?,`phone`=?,`createtime`=?,`updatetime`=?,`state`=?";
  10. $pdo =CreatePDO::Create();
  11. $pre=$pdo->prepare($sql);
  12. $exec=$pre->execute(
  13. [
  14. $user->account,
  15. $user->password,
  16. $user->name,
  17. $user->email,
  18. $user->phone,
  19. $user->createTime,
  20. $user->updateTime,
  21. $user->state
  22. ]
  23. );
  24. if($exec){
  25. return 1;
  26. }else{
  27. return 0;
  28. }
  29. }
  30. // 根据id查询用户信息
  31. public static function GetUserById($id){
  32. $sql="SELECT * FROM `php_user` WHERE `id`=$id";
  33. $pdo =CreatePDO::Create();
  34. $pre=$pdo->prepare($sql);
  35. $exec=$pre->execute();
  36. $data = $pre -> fetch();
  37. return $data;
  38. }
  39. // 所有用户信息
  40. public static function GetAllUser(){
  41. $sql="SELECT * FROM `php_user`";
  42. $pdo =CreatePDO::Create();
  43. $pre=$pdo->prepare($sql);
  44. $exec=$pre->execute();
  45. $data = $pre -> fetchAll(PDO::FETCH_OBJ);
  46. return $data;
  47. }
  48. // 根据id删除用户信息
  49. public static function DeleteById($id){
  50. $pdo =CreatePDO::Create();
  51. $sql="DELETE FROM `php_user` WHERE id=$id";
  52. $pre=$pdo->prepare($sql);
  53. $exec=$pre->execute();
  54. if($exec){
  55. $res=1;
  56. }else{$res=0;}
  57. return $res;
  58. }
  59. // 修改用户信息
  60. public static function UpdateUser($user){
  61. $pdo =CreatePDO::Create();
  62. $sql="UPDATE `php_user` SET `name`=?,`email`=?,`phone`=?,`updatetime`=?,`state`=? WHERE id=?";
  63. $pre=$pdo->prepare($sql);
  64. $exec=$pre->execute(
  65. [
  66. $user->name,
  67. $user->email,
  68. $user->phone,
  69. $user->updateTime,
  70. $user->state,
  71. $user->id
  72. ]
  73. );
  74. if($exec){
  75. return 1;
  76. }else{
  77. return 0;
  78. }
  79. }
  80. }

添加用户信息文件 adduser.html(没有修改)

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8" />
  5. <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  6. <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  7. <title>添加用户</title>
  8. <style>
  9. .form {
  10. width: 360px;
  11. margin: 0 auto;
  12. padding: 10px;
  13. }
  14. form {
  15. display: grid;
  16. gap: 0.5rem;
  17. }
  18. fieldset {
  19. display: grid;
  20. gap: 0.5rem;
  21. }
  22. h2 {
  23. text-align: center;
  24. }
  25. label {
  26. margin-left: 40px;
  27. }
  28. </style>
  29. </head>
  30. <body>
  31. <div class="form">
  32. <h2>添加用户</h2>
  33. <form action="createuser.php" method="post">
  34. <fieldset>
  35. <legend>必填项</legend>
  36. <div>
  37. <label for="account">用名:</label>
  38. <input id="account" type="text" name="account" required />
  39. </div>
  40. <div>
  41. <label for="password">密码:</label>
  42. <input type="password" id="password" name="password" required />
  43. </div>
  44. </fieldset>
  45. <fieldset>
  46. <legend>选填项</legend>
  47. <div>
  48. <label for="name">姓名:</label>
  49. <input type="text" id="name" name="name" />
  50. </div>
  51. <div>
  52. <label for="email">邮箱:</label>
  53. <input id="email" type="email" name="email" />
  54. </div>
  55. <div>
  56. <label for="phone">电话:</label>
  57. <input id="phone" type="number" name="phone" />
  58. </div>
  59. </fieldset>
  60. <div>
  61. <label for="phone">状态:</label>
  62. <select name="state" id="">
  63. <option value="1">开启</option>
  64. <option value="2">关闭</option>
  65. </select>
  66. </div>
  67. <button>添加</button>
  68. </form>
  69. </div>
  70. </body>
  71. </html>

添加用户信息后台文件createuser.php

  1. <?php
  2. require_once "auto.php";
  3. if(!empty($_POST)){
  4. $user=new User();
  5. $user->account=trim($_POST['account']);
  6. $user->password=md5(trim($_POST['password']));
  7. $user->name=trim($_POST['name'])??"";
  8. $user->email=trim($_POST['email'])??"";
  9. $user->phone=$_POST['phone'];
  10. $user->createTime=time();
  11. $user->updateTime=time();
  12. $user->state=$_POST['state'];
  13. if(UserContr::createUser($user)){
  14. echo '<script>alert("添加成功");location.href="showuser.php"</script>';
  15. }else{
  16. print_r($pre->errorInfo());
  17. }
  18. }

显示用户信息文件 showuser.php

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8">
  5. <meta http-equiv="X-UA-Compatible" content="IE=edge">
  6. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  7. <title>显示用户信息</title>
  8. <style>
  9. /* 1. 添加表格线,添加给单元格 */
  10. tbody td,
  11. th {
  12. border: 1px solid;
  13. }
  14. /* 2. 折叠表格线 */
  15. table {
  16. border-collapse: collapse;
  17. width: 90%;
  18. /* 对齐 */
  19. text-align: center;
  20. margin: 2em auto;
  21. }
  22. /* 标题 */
  23. table caption {
  24. font-weight: bolder;
  25. margin-bottom: 1em;
  26. }
  27. table thead {
  28. background-color: lightgreen;
  29. }
  30. tbody tr:nth-of-type(2n){
  31. background-color: #ddd;
  32. }
  33. </style>
  34. </head>
  35. <body>
  36. <?php
  37. require_once "auto.php";
  38. $data=UserContr::GetAllUser();
  39. ?>
  40. <div class="show">
  41. <table>
  42. <caption>用户信息</caption>
  43. <thead>
  44. <tr>
  45. <th><input type="checkbox" id="check_all"></th>
  46. <th>ID</th>
  47. <th>用户名</th>
  48. <th>姓名</th>
  49. <th>电话</th>
  50. <th>邮箱</th>
  51. <th>创建时间</th>
  52. <th>最后登录时间</th>
  53. <th>状态</th>
  54. </tr>
  55. </thead>
  56. <tbody>
  57. <?php foreach($data as $user): ?>
  58. <tr>
  59. <td><input type="checkbox" class="chk_item"></td>
  60. <td class="id"><?=$user->id?></td>
  61. <td><a href="edituser.html?id=<?=$user->id?>" title="点击修改用户信息" ><?=$user->account?></a></td>
  62. <td><?=$user->name?></td>
  63. <td><?=$user->phone?></td>
  64. <td><?=$user->email?></td>
  65. <td><?=date('Y-m-d',$user->createtime)?></td>
  66. <td><?=date('Y-m-d',$user->updatetime)?></td>
  67. <td><?=$user->state==1?'开启':'关闭'?></td>
  68. </tr>
  69. <?php endforeach ?>
  70. </tbody>
  71. <tfoot>
  72. <tr><td colspan="3"><button onclick="del()">删除</button></td>
  73. <td><a href="adduser.html">添加用户</a></td>
  74. </tr>
  75. </tfoot>
  76. </table>
  77. </div>
  78. <script>
  79. const chkAll=document.querySelector("#check_all");
  80. const chkItems=document.querySelectorAll(".chk_item");
  81. chkAll.onchange=ev=>chkItems.forEach(item=>item.checked=ev.target.checked);
  82. chkItems.forEach(item=>item.onchange=()=>chkAll.checked=[...chkItems].every(item=>item.checked));
  83. function del(){
  84. if(confirm('您确定要删除这些用户吗?')){
  85. const chkItems=document.querySelectorAll(".chk_item");
  86. chkItems.forEach(item=>{
  87. if(item.checked){
  88. const id=item.parentElement.nextElementSibling.textContent;
  89. let isDel=delOpt(id);
  90. if(isDel){
  91. // console.log( item.parentElement.parentElement);
  92. item.parentElement.parentElement.remove();
  93. }
  94. }
  95. })
  96. }else{
  97. alert("NO");
  98. }
  99. }
  100. async function delOpt(id){
  101. const response = await fetch("del_user.php?id=" + id);
  102. const comments = await response.json();
  103. return comments;
  104. }
  105. </script>
  106. </body>
  107. </html>

删除用户文件 del_user.php

  1. <?php
  2. require_once "auto.php";
  3. $id=$_GET['id'];
  4. $res=UserContr::DeleteById($id);
  5. echo $res;

修改用户信息 页面文件edituser.html(没有修改)

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8" />
  5. <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  6. <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  7. <title>更新用户</title>
  8. <style>
  9. .form {
  10. width: 360px;
  11. margin: 0 auto;
  12. padding: 10px;
  13. }
  14. form {
  15. display: grid;
  16. gap: 0.5rem;
  17. }
  18. fieldset {
  19. display: grid;
  20. gap: 0.5rem;
  21. }
  22. h2 {
  23. text-align: center;
  24. }
  25. </style>
  26. </head>
  27. <body>
  28. <div class="form">
  29. <h2>更新用户信息</h2>
  30. <form action="updateuser.php" method="post">
  31. <fieldset>
  32. <legend>用户信息</legend>
  33. <div>
  34. <input type="hidden" name="id" />
  35. <label for="account">用名:</label>
  36. <input id="account" type="text" name="account" required readonly />
  37. </div>
  38. <div>
  39. <label for="name">姓名:</label>
  40. <input type="text" id="name" name="name" />
  41. </div>
  42. <div>
  43. <label for="email">邮箱:</label>
  44. <input id="email" type="email" name="email" />
  45. </div>
  46. <div>
  47. <label for="phone">电话:</label>
  48. <input id="phone" type="number" name="phone" />
  49. </div>
  50. </fieldset>
  51. <div>
  52. <label for="phone">状态:</label>
  53. <select name="state" id="">
  54. <option value="1">开启</option>
  55. <option value="2">关闭</option>
  56. </select>
  57. </div>
  58. <button>修改</button>
  59. </form>
  60. </div>
  61. <script>
  62. let url = location.search;
  63. let id = url.substr(4);
  64. if (id > 0) {
  65. fetch("searchbyid.php?id=" + id)
  66. .then((response) => response.json())
  67. .then((json) => {
  68. const form = document.forms[0];
  69. form.id.value = json.id;
  70. form.account.value = json.account;
  71. form.account.readonly = true;
  72. form.phone.value = json.phone;
  73. form.email.value = json.email;
  74. form.name.value = json.name;
  75. form.state.value = json.state;
  76. });
  77. } else {
  78. }
  79. </script>
  80. </body>
  81. </html>

修改用户信息 后台文件updateuser.php

  1. <?php
  2. require_once "auto.php";
  3. if(!empty($_POST)){
  4. $user=new User();
  5. $user->id=$_POST['id'];
  6. $user->account=trim($_POST['account']);
  7. $user->name=trim($_POST['name'])??"";
  8. $user->email=trim($_POST['email'])??"";
  9. $user->phone=$_POST['phone'];
  10. $user->updateTime=time();
  11. $user->state=$_POST['state'];
  12. $res=UserContr::UpdateUser($user);
  13. if($res){
  14. echo '<script>alert("修改成功");location.href="showuser.php"</script>';
  15. }else{
  16. }