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Ich versuche, eine Anmeldung auf einer Website, wo es verbindet sich mit der Datenbank, überprüft dagegen, aber die Umleitung funktioniert nicht (login.php loggedin.php). Ich bin entsetzlich, wenn ich meinen eigenen Code lese, und habe mich eine Weile im Kreis bewegt. Wenn jemand helfen könnte, wäre ich sehr dankbar! Vielen Dank im Voraus.Login nicht richtig umleiten
Login_page.inc.php
<?php # Script 11.1 - login_page.inc.php
// this page prints any errors associated with logging in
//and creates te entire login page, including the fom
//include the header:
$page_title = 'Login';
include ('includes/header.html');
//print any error messages if they exist:
if (!empty($errors))
{
echo '<h1>Error!</h1>
<p class="error">The following error(s) occurred:</br>';
foreach ($errors as $msg)
{
echo "- $msg</br>\n";
}
echo '</p><p>Please try again.</p>';
}
//display form
?>
<h1>Login</h1>
<form action=login.php" method="post">
<p>Email Address: <input type="text" name="email" size="20" maxlength="80"/></p>
<p>Password: <input type="password" name="pass" size="20" maxlength="20"/></p>
<p><input type="submit" name="submit" value="Login"/></p>
<input type="hidden" name="submitted" value="TRUE"/>
</form>
<?php //include the footer:
include ('includes/footer.html');
?>
Loggedin.php
<?php # loggedin.php
//this is where the user is directed from login.php
session_start();
//if no cookie is present redirect the user:
//if (!isset($_COOKIE['user_id']))
if (!isset($_SESSION['user_id']))
{
//the functions need to create an absolute url
require_once ('includes/login_functions.inc.php');
$url = absolute_url();
header("Location: $url");
exit(); //exit script
}
//set the page title and include the header
$page_title = 'Logged in.';
include ('includes/header.html');
//welcome message
echo "<h1>Logged in!</h1>
<p>You have successfully logged in, {$_SESSION['first_name']}!</p>
<p><a href=\"logout.php\">Logout</a></p>";
include ('includes/footer.html');
?>
login.php
<?php # login.php
//this page processes the login form submission
//upon successful login the user's redirected
//two include files are needed for this
//send nothing to the web browser prior to the setcookie() lines
//check if the form has been submitted:
if (isset($_POST['submitted']))
{
//for processing the login:
require_once ('includes/login_functions.inc.php');
//need the database connection:
require_once ('includes/mysqli_connect.php');
//check the login
list ($check, $data) = check_login($dbc, $_POST['email'], $_POST['pass']);
if($check)
{
/*ok, set cookies to last one hour after it is set
setcookie ('user_id', $data ['user_id'], time()+3600, '/', '', 0, 0);
setcookie ('first_name', $data ['first_name'], time()+3600, '/', '', 0, 0);*/
session_start();
$_SESSION['user_id'] = $data['user_id'];
$_SESSION['first_name'] = $data['first_name'];
//redirect
$url = absolute_url ('loggedin.php');
header("Location: $url");
exit(); //quit the script
}
else
{
//assign errors to $data for error reporting in the login_page.inc.php
$errors = $data;
}
mysqli_close($dbc); //close the database connection
} //end of main submit condition
include ('includes/login_page.inc.php');
?>
Login_functions.php
<?php #- login_functions.inc.php
//this page defines two functions used by the login/logout process.
/*this function determines and returns an absolte URL
*takes one argument: the page that concludes the URL
*the arguement defaults to index.php
*/
function absolute_url ($page = 'index.php')
{
//start defining the URL. . .
//URL is http:// plus the host name plus current directory:
$url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']);
//remove any trailing slashes:
$url = rtrim($url, '/\\');
//adding the page. . .
$url.= '/' . $page;
//return to the url
return $url;
} //end of the absolute_url function
/* this function validates the form data (the email address and password)
*if both are present the database is queried
*this function requires a database connection
* the function returns an array of information. including:
* - a TRUE or FALSE variable indicating a success or failure
* - an array of either errors or the database return result
*/
function check_login($dbc, $email = '', $pass = '')
{
$errors = array(); //starting error array
//validate email address
if (empty($email))
{
$errors[] = 'You forgot to enter your email address.';
}
else
{
$e = mysqli_real_escape_string($dbc, trim($email));
}
//validate the password
if (empty($pass))
{
$errors[] = 'You forgot to enter your password.';
}
else
{
$p = mysqli_real_escape_string($dbc, trim($pass));
}
if (empty($errors))
{
/*if everything's okay
*retrieve the user_id and the first_name for that
*email+password combination:
*/
$q = "SELECT user_id, first_name FROM site_users WHERE email='$e' AND pass=SHA1('$p')";
$r = @mysqli_query ($dbc, $q); //run the query
//check the result and making sure that both fields are in the same row
if(mysqli_num_rows($r) ==1)
{
//fetch the record
$row = mysqli_fetch_array ($r, MYSQLI_ASSOC);
//return true and the record:
return array(true, $row);
}
else
{
//not a match
$errors[] = 'The email address and password entered do not match those on file.';
}
}//end of empty($errors) IF.
//return false and the errors:
return array(false, $errors);
} //end of check_login() function
?>
und wie genau funktioniert nicht? wohin willst du umleiten? Hauptverzeichnis? oder login.php? – riso
Welche Umleitung schlägt fehl? Der eine innerhalb 'if ($ check)'? Und haben Sie verifiziert, dass die Ausgabe von 'absolute_url()' korrekt und gültig ist? –
loggedin.php ist, wo ich versuche zu erreichen. Wenn ich versuche, zum eingelogged umzuleiten, sagt es mir, dass die Seite nicht existiert. Ich schaue immer wieder durch, kann aber nicht sehen, warum das nicht so war. – PurpleSmurph