<?php session_start();?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="template.css">
</head>
<body>
<form name="frmlogin" method="post" action="login.php">
<div class="main">
<div class="img">
<img src="https://i.pinimg.com/564x/21/72/1a/21721a303eb55709cab32210737cd8f8.jpg" alt="">
</div>
<table style="width:100%">
<tr>
<th class="long"></th>
<th>ID</th>
<th><input type="text" id="username" name="username"></th>
<th>PW</th>
<th><input type="password" id="password" name="password"></th>
<th><button class="button" type="submit" >Login</button></th>
</tr>
</table>
<div class="content">
<p>
these are the popular menues that we recommended to you!
we hope you enjoy it and appreciate our service as well
we glad you came here and hope to see you next time
<br>thank you :)</br>
</p>
</div>
<div class="footer">
<div class="foot1">
<img src="https://i.pinimg.com/564x/bb/eb/be/bbebbe41c08562dd3433ebd1b2d47e23.jpg" alt="">
</div>
</div>
</div>
</form>
</body>
</html>
-----------------------------------
หน้ารับค่า จาก form Code (PHP)
<?php
session_start();
if(isset($_POST['username'])){
//connection
include("connection.php");
//รับค่า user & password
$Username = $_POST['username'];
$Password = $_POST['password']; //ตรงนี้คับที่ลบออก
//query
$sql="SELECT * FROM user Where username='".$Username."' and password='".$Password."' ";
$result = mysqli_query($con,$sql);
if(mysqli_num_rows($result)==1){
$row = mysqli_fetch_array($result);
$_SESSION["id"] = $row["id"];
$_SESSION["user"] = $row["firstname"]." ".$row["lastname"];
$_SESSION["userlevel"] = $row["userlevel"];
if($_SESSION["userlevel"]=="admin"){ //ถ้าเป็น admin ให้กระโดดไปหน้า admin_page.php
Header("Location: admin_page.php");
}
if ($_SESSION["userlevel"]=="user"){ //ถ้าเป็น member ให้กระโดดไปหน้า user_page.php
Header("Location: user_page.php");
}
}else{
echo "<script>";
echo "alert(\" user หรือ password ไม่ถูกต้อง\");";
echo "window.history.back()";
echo "</script>";
}
}else{
Header("Location: form.php"); //user & password incorrect back to login again
}
?>
Load balance : Server 01
