PHP註冊錯誤驗證

Question

我一直在練習PHP和mongodb。我正在開發一個簡單的Web應用程序，但使用OOP。

我創建了一個名爲user的類，它有我的方法來處理像addUser，deleteUser等用戶。對於添加用戶，我希望表單執行一些簡單的驗證任務，但我不知道如何。這裏是類添加一個新用戶：

function createUser($username, $name, $email, $password){ 


      $user = array(
       'username' => $username, 
       'name' => $name, 
       'email' => $email, 
       'password' => $password 

      ); 

      if ($this->db->count(array('username' => $username)) == 0) { 
       $this->db->insert($user); 
       return true; 

      } else { 
       echo 'username taken'; 
      } 



    } 

和HTML：

<?php 


session_start(); 
include_once 'user.php'; 
include './templates/header.php'; 


if (isset($_POST['register']) && ($_POST['register']) == ($_POST["register"])) { 


       $user = new User(); 
       $return = $user->createUser(
        $_POST['username'], 
        $_POST['name'], 
        $_POST['email'], 
        $_POST['password'], 
        $_POST['password2']); 

     } 
     if ($return == true) { 
      echo 'you have successfully registered'; 
     } else { 
      echo '</br>' . 'sorry, try again'; 
     } 





?> 
<div class="container"> 
    <div class="jumbotron"> 
     <form method="post" action=""> 
      <label>Username: </label><br> 
      <input name="username" type="text" ><br><br> 

      <label>Name: </label><br> 
      <input name="name" type="text"><br><br> 

      <label>Email: </label><br> 
      <input name="email" type="email" ><br><br> 

      <label>Password: </label><br> 
      <input name="password" type="password" ><br><br><br> 

      <label>Repeat Password: </label><br> 
      <input name="password2" type="password" ><br><br><br> 

      <input name="register" class="btn btn-primary btn-lg" type="submit" value="Register"><br> 
     </form> 
    </div> 
</div> 

請隨時糾正我，你可能會發現其他的錯誤。我知道肯定會有一些。

Answer 1

我爲你寫一個簡單的例子，它簡單而有用的

class validation { 
     public $currentValue; 
     public $values = array(); 
     public $errors = array(); 

     public function __construct() { 
      parent::__construct(); 

      // echo "burasi model sayfasi "; 


     } 

     public function post($key){ 
      if(isset($_POST[$key])){ 
      $this->values[$key]  = $_POST[$key]; 
      $this->currentValue = $key; 
      return $this; 
     }else{ die("hi boo boo ! your form values are empty");} 

      } 
    public function isEmpty(){ 
     if(empty($this->values[$this->currentValue])){ 
      $message='the form is emppty'; 
      $this->errors[$this->currentValue]['empty'] =''.$message.''; 
     } 
     return $this; 
    } 
    public function submit(){ 
     if(empty($this->errors)){ 
      return true; 
     }else{ 
      return false; 
     } 
    } 
    } 

這是一個例子，所以你如何使用它？ 首先你需要喲調用類

$form = new validation(); 
    $form->post("all you need just write post name here ") 
->isEmpty(); 
if($form->submit()){ 
//everyting is ok ! 
you cann add delet or update data 
}else{ 
$data["error"] = $form->errors; // and we sett the errorr mesages to the array now you can show the user the errormesages ! well done 
} 
}