I've been searching for a solution but it's seem I can't get it right, no matter what I try.
After successful login, the user should be redirected to the page he came from, let's say he's been browsing a post and wants to log in so he can leave a comment, so he should be redirected to the post he was browsing. So here is what I have:
login.php shows the login form:
<form method="post" action="login-check.php">
... //input for username and password
</form>
The login-check.php checks if the username and pass are entered, does the user exist, or if he's already logged in, and a p
parameter is sent to login.php:
<?php
session_start();
if((empty($username) OR empty($password) AND !isset($_SESSION['id_login']))) {
header("Location:login.php?p=1");
exit();
}
elseif (!user_exists($username,$password) AND !isset($_SESSION['id_login'])) {
header("Location:login.php?p=2");
exit();
}
elseif(isset($_SESSION['id_login'])) {
header("Location:login.php?p=3");
exit();
}
?>
then parameter p
is sent back to login.php and displays the according message:
<?php
if(isset($_GET['p'])) {
$p = $_GET["p"];
if($p=="1")
echo "<p class="red">You didn't fill the form.</p><br></br>";
if($p=="2")
echo "<p class="red">User exists.</p><br></br>";
if($p=="3")
header("Location: index.php");
}
?>
BUT, instead of going to index.php after successful login, it should go to the page the user has previously been. I've tried in different ways but ether it doesn't work at all or it returns to login.php. It doesn't need to be super safe, because I'm doing this for a school project.
ALSO, I consider myself pretty novice, so please have patience :D