I am new to PHP and trying to put together a protype for an assignment. I am using the following login script together with a simple form fill for username and password. Once it checks the username and password against the database, if they match it takes the user to the welcome.php page. How can I make the welcome.php only viewable if a user has successfully logged in?
<?php
include("web_config.php");
session_start();
if($_SERVER["REQUEST_METHOD"] == "POST") {
// username and password sent from form
$myusername = mysqli_real_escape_string($mysqli,$_POST['username']);
$mypassword = mysqli_real_escape_string($mysqli,$_POST['password']);
$sql = "SELECT UserAccountID FROM UserAccounts WHERE Username = '$myusername' and Password = '$mypassword'";
$result = mysqli_query($mysqli,$sql);
$row = mysqli_fetch_array($result,MYSQLI_ASSOC);
$active = $row['active'];
$count = mysqli_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count == 1) {
echo "User logged in."; header("location: welcome.php");
} else {
$error = "Your Login Name or Password is invalid";
}
}
?>
<div style = "font-size:11px; color:#cc0000; margin-top:10px"><?php echo $error; ?></div>
您可能想看看在PHP登录脚本中使用会话和会话变量,该脚本已经包含有关此主题的许多有用信息。
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