Redirect

websak

I am creating a php page where which i would like to to be not public and used only for members. I am trying to redirect the user to the login page if not logged in -> login page else login. I am getting following error please can someone help me.

Fatal error: Call to undefined function redirect() in /Applications/XAMPP/xamppfiles/htdocs/programming_course/FMA/content3.php on line 6

Thanks in advance.

laserlight

You probably should be using the [man]header/man function to redirect by sending a location header, followed immediately by [man]exit[/man].

websak

Would you be kind enough to give an example of how to do this??

laserlight

You can see such an example in the PHP manual page that I linked to.

websak

Ah yes thanks very much will this work in a if statement?

laserlight

In the body of an if statement? Yes, but again there is a caveat concerning the use of header() that is stated in the PHP manual.

websak

I am getting the following errors now please would you mind having a look for me.
Warning: Cannot modify header information - headers already sent by (output started at /Applications/XAMPP/xamppfiles/htdocs/programming_course/FMA/login.php:25) in /Applications/XAMPP/xamppfiles/htdocs/programming_course/FMA/login.php on line 27

$pagetitle = "Login Page";
/ Redirect to a different page in the current directory that was requested /
$host = $SERVER['HTTP_HOST'];
$uri = rtrim(dirname($SERVER['PHP_SELF']), '/\');
$extra = 'content3.php';

if (isset ($_POST['submit'])) {

$loggedin = FALSE; 
$file = fopen ( 'users.txt', 'rb' ); 

while ($line = fgetcsv($file,100,",")) { 

if ( ($line[0] == $_POST['username']) AND ($line[1] == ($_POST['password']) ) ) { 
$loggedin = TRUE; 

//break; 
}

}

if ($loggedin) {
echo ' The password and username are verified.';
echo ' ';
header("Location: http://$host$uri/$extra");
exit;

} else {
echo ' The username and password did not match!';
}
}

laserlight

Get rid of those echo statements. This is the caveat that I hinted at:

Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP.

websak

Thankyou that worked

would you be able to tell me why my session is being set?

<?php
session_start(); // must be at the VERY top of all pages that GET or SET session objects

$pagetitle = "Login Page";

if (isset ($_POST['submit'])) {

$_SESSION['LoggedIn'] = false;
$file = fopen ( 'users.txt', 'rb' ); 

while ($line = fgetcsv($file,100,",")) { 

if (($line[0] == $_POST['username']) AND ($line[1] == ($_POST['password']) ) ) { 
//$loggedin = TRUE; 
	$_SESSION['LoggedIn'] = true; // set login session successful!
//break; 
}

}

if ($SESSION['LoggedIn']) {
$SESSION['username'] = $username;
header("Location: content3.php");
exit;

} else {
echo ' The username and password did not match!';
}
}

include_once('template/header.inc.php');

bradgrafelman

Not sure what you mean by "session is being set", but... where do you ever define the variable $username?

websak

sorry isnt being set!!

<?php
session_start(); // must be at the VERY top of all pages that GET or SET session objects

$pagetitle = "Login Page";

if (isset ($_POST['submit'])) {

$_SESSION['LoggedIn'] = false;
$file = fopen ( 'users.txt', 'rb' ); 

while ($line = fgetcsv($file,100,",")) { 

if (($line[0] == $_POST['username']) AND ($line[1] == ($_POST['password']) ) ) { 
//$loggedin = TRUE; 
	$_SESSION['LoggedIn'] = true; // set login session successful!
//break; 
}

}

if ($SESSION['LoggedIn']) {
$SESSION['username'] = $_POST['username'];
header("Location: content3.php");
exit;

} else {
echo ' The username and password did not match!';
}
}

include_once('template/header.inc.php');

websak

Sorry what i was meant to say was how do print to screen your session??

Wynder

websak;11010247 wrote:
Sorry what i was meant to say was how do print to screen your session??

I usually use this little snippet to print out the contents of my session:

echo '<pre>';
print_r($_SESSION);
echo '</pre>';