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限制特定用戶的PHP頁面

[英]Restrict PHP page from specific user

假設我有一個名為users的數據庫,它有3個用戶:

  uid | a_id | username | password
  1   |  1   | William  | 123
  2   |  2   | Joe      |321

a_id表示“訪問ID”,表示1是admin,2是guest。

我希望a_id為2的用戶無法看到或單擊examplepage1.php

這是我用於登錄的代碼:

 <?php
 try {
 $db = new PDO('mysql:host=localhost;dbname=login', "root", "");
 } catch (PDOException $e) {
 echo $e->getMessage();
 }

    $uid = $_POST['username1'];
    $pwd = $_POST['password1'];

    $sql = "SELECT * FROM `users` WHERE  `username` = :username1 AND `password` = :password1";
   $statement = $db->prepare($sql);
    $userData = [
'username1'=>$uid,
'password1'=>$pwd,

    ];

   $statement->execute($userData);

   if($statement->rowCount() > 0){
   session_start();
   $_SESSION['admin']= $uid;
   $_SESSION['logged'] = true;

   header('Location: indextemplate.php');
   exit();
 }

   elseif ($uid!=$idvariable&$pwd!=$idvarible){
   header('Location: loginform.php?error=empty2');
  exit();
 }
 ?>

在頁面的每個開始處:

<?php
  session_start();
   if(!isset($_SESSION['admin'])){
   header('location:index1.php');
   }
   else
   { 
 *my website here*
  }
 ?>

使用用戶名和密碼登錄時,存儲您的a_id 並檢查

<?php
  session_start();
   if(isset($_SESSION['a_id']) && $_SESSION['a_id'] == 1){
   header('location:index1.php');
   }
   else
   { 
 *my website here*
  }
 ?>

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