Hi all,
Got a problem with my php Login page - whenever I click on "Login" a blank page appears, whereas it should take me back to the home page and replace "Login" button with the "Logout" button.
The code is as follows:
Login.php
<?php
session_start();
include("db_open.php");
//error_reporting(0);
if ($_GET["op"] == "login")
{
if (!$_POST["username"] || !$_POST["password"])
{
die("You need to provide a username and password.");
}
// Create query
$q = "SELECT * FROM `members` "
."WHERE `username`='".$_POST["username"]."' "
."AND `password`='".$_POST["password"]."' "
."LIMIT 1";
// Run query
$r = mysql_query($q);
if ($obj=@mysql_fetch_object($r))
{ // Login good, create session variables
$_SESSION["valid_id"]=$obj->id;
$_SESSION["valid_user"]=$obj->username;
$_SESSION["valid_email"]=$obj->email;
$_SESSION["valid_time"]=time();
Header("Location:index.php");
}
else { // Login not successful
die("Sorry, could not log you in. Wrong login information.");
}
}
else { //If all went right the Web form appears and users can log in
echo "<form action=\"?op=login\" method=\"POST\">";
echo "Username: <input name=\"username\" size=\"15\" value=\"Roman\"><br />";
echo "Password: <input type=\"password\" name=\"password\" size=\"8\" value=\"admin\"><br />";
echo "<input type=\"submit\" value=\"Login\">";
echo "</form>";
}
?>
Index.php - menu part only
<?php
error_reporting(0);
session_start();
if (!$_SESSION["valid_user"]){
// if user not logged in, display login link
echo "<li><a href=\"login.php\">Login</a></li>";
}
else {
// if user is logged in, display user information and logout link
echo "<li><a href=\"logout.php\">Logout</a></li>";
echo "<p>User ID: " . $_SESSION["valid_id"];
echo "<p>Username: " . $_SESSION["valid_user"];
echo "<p>Email: " . $_SESSION["valid_email"];
echo "<p>Logged in: " . date("m/d/Y", $_SESSION["valid_time"]);
$id = $_SESSION["valid_id"];
}
?>
As said above, when I click on login a blank page appears...
I tested the code at home (am using WAMP SERVER),it works perfectly fine!
Then i tried it in the college, it just wouldnt work as intended (blank page)
I believe the session is registering, because when i added the following to the login page, it displays the correct info (see here):
echo "Hello " . $_SESSION["valid_user"] . "<br/>";
echo "UserID " . $_SESSION["valid_id"] . "<br/>";
echo "Email " . $_SESSION["valid_email"] . "<br/>";
echo "Time " . $_SESSION["valid_time"] . "<br/>";
Please advice 🙁
