header problem

[corillo181]

whats this error i'm getting.........


Warning: Cannot modify header information - headers already sent by (output started at C:\wamp\www\includes\db.php:2) in C:\wamp\www\phpscripts\check_user.php on line 32

[corillo181]

header('Location: ../home.php');


this is what i have in line 32.

[fert]

you can't do that headers can only be at the very top of your source code.

[corillo181]

but i have the same code in a website and it wokrs fine, but i update the site to a localhost to test somethings and i get that error.. it works on the website but not in the localhost..

why is that?

[corillo181]

plus it meant with a if statement.. wich is this

[code]
<?php
if($login_check > 0){
while($row = mysql_fetch_array($sql)){
foreach( $row AS $key => $val ){
$$key = stripslashes( $val );
}
// Register some session variables!
$_SESSION['username'] = $username;
$_SESSION['password'] = $password;
$_SESSION['user_id'] = $user_id;
$_SESSION['level'] = $level;
mysql_query("UPDATE tra_users SET last_login=now() WHERE username='$username'");

header('Location: ../home.php');
}
}
?>
[/code]

[bljepp69]

it's a good idea to put exit(); after your call to a header like that.

Also, make sure you don't have any blank lines or spaces before your "<?php"  Those are output to the browser and then you will get that header warning.

[corillo181]

no i still get the same warning this is the whole code


[code]
<?php
session_start();  // Start Session
include '../includes/db.php';
// Conver to simple variables
$username = $_POST['username'];
$password = $_POST['password'];

if((!$username) || (!$password)){
echo "Please enter your password and username! <br />";
include '../htmlforms/login.html';
exit();
}


// check if the user info validates the db
$sql = mysql_query("SELECT * FROM tra_users WHERE username='$username' AND password='$password' AND activated='yes'");
$login_check = mysql_num_rows($sql);

if($login_check > 0){
while($row = mysql_fetch_array($sql)){
foreach( $row AS $key => $val ){
$$key = stripslashes( $val );
}
// Register some session variables!
$_SESSION['username'] = $username;
$_SESSION['password'] = $password;
$_SESSION['user_id'] = $user_id;
$_SESSION['level'] = $level;
mysql_query("UPDATE tra_users SET last_login=now() WHERE username='$username'");
header('Location: ../index.php');
exit();
}
} else {
echo "You could not be logged in! Either the username and password do not match or you have not validated your membership. Check your email to activate your name or make sure you have your username and password correct!<br />
Please try again!<br />";
include '../htmlforms/login.html';
}
?>

[/code]

[JasonLewis]

wack this at the top:
[code=php:0]ob_start();[/code]

and again wack this at the bottom of your code:
[code=php:0]ob_end_flush();[/code]

[corillo181]

even before session_start?

[corillo181]

solve that problem but when header sent it to home.php.. the session is broken, even tho i got session_start on top of the page..

[corillo181]

this si what i got in home.php to test the code you just saw and it doesn't work it keeps showing me log in..

[code]

<?php
session_start();
include_once'header.php';
include_once'db.php';

if(isset($username)){echo'<a href=mem/memberpage.php>My Info</a> | <a href="phpscript/logout.php">Logout</a>';
}else{
echo'<a href="phpscript/check_user.php">Login</a>';
}

?>


[/code]

[corillo181]

no clue any one?

[Daniel0]

Try change $username to $_SESSION['username']

[corillo181]

no it wont work, because the $_session is been passed with a variable, so if it dont work with the variable it wont wokr like that ither.

[Daniel0]

What is in the other files?

[corillo181]

in the other file are just things to show up if the session variable are passed...

but they are not been passed from page to page.

i got session start on top of every page, but as soon i'm directed to the next page the session ends..

[craygo]

Read the error. Output was started by the db.php file on line 2. Since you are including another php, db.php, any output from that file is also part of the current page. Check the db.php file for echo statements or anything else that will output to the browser.

Ray

[corillo181]

on the db.php i only got the connection the the database no headers nothing else, but it wokrs the problem is that my variables ar enot passing to the next page now..

[corillo181]

no idea any one yet?

[craygo]

post code for both files, minus passwords and such, so we can help more.

Ray

[corillo181]

this is the db.
[code]<?php
$host = 'mysql';
$user = 'user';
$pass = 'password';
$db_name = 'database';

$sqlconn = mysql_connect($host,$user,$pass) or die (mysql_error());
mysql_select_db($db_name);
?>

[/code]

this is where user get the session
[code]<?php
/* Check User Script */
session_start();  // Start Session
include '../includes/db.php';
// Conver to simple variables
$username = $_POST['username'];
$password = $_POST['password'];

if((!$username) || (!$password)){
echo "Please enter your password and username! <br />";
include '../htmlforms/login.html';
exit();
}


// check if the user info validates the db
$sql = mysql_query("SELECT * FROM tra_users WHERE username='$username' AND password='$password' AND activated='yes'");
$login_check = mysql_num_rows($sql);

if($login_check > 0){
while($row = mysql_fetch_array($sql)){
foreach( $row AS $key => $val ){
$$key = stripslashes( $val );
}
// Register some session variables!
$_SESSION['username'] = $username;
$_SESSION['password'] = $password;
$_SESSION['user_id'] = $user_id;
$_SESSION['level'] = $level;
mysql_query("UPDATE tra_users SET last_login=now() WHERE username='$username'");

header('Location: ../home.php');
}
} else {
echo "You could not be logged in! Either the username and password do not match or you have not validated your membership. Check your email to activate your name or make sure you have your username and password correct!<br />
Please try again!<br />";
include '../htmlforms/login.html';
}
?>
[/code]

and this is the home page.
[code]<?php
session_start();
include_once'includes/header.php';
include_once'includes/db.php';
?>
              <?php if(isset($username)){}else{?><tr>
            <td class="menu">::login:: </td>
          </tr><tr>
            <td bgcolor="#F0D5A2" class="tdbg"><?php include'htmlforms/login.html';?></td>
          </tr>
<?php   }?>
[/code]

[craygo]

try putting the sql connection in. You might be getting a warning for the connection.
[code]mysql_select_db($db_name, $sqlconn) or die(mysql_error());[/code]

ray

[corillo181]

oh no the connection is no longer my problem.. my problem is the session is not passing to the next php..


as you can seen in home i got a if statement for someone who is signed in or is not.. but no matter if they sign in, the state stay false.. the session is not passin along to the next page as it should..

[bljepp69]

Unless register_globals is on (in your php.ini file), which it likely isn't, you will need to specifically call the session variable "username" like $_SESSION['username'].  With register_globals off, $_SESSION['username'] is NOT the same as $username.

[code]<?php if($_SESSION['username']){}else{?>[/code]

[corillo181]

i tried this now in my home page to see if it worked like that and still it dont..
[code]
<?php if($_SESSION['username']){echo'<a href=mem/memberpage.php>My Info</a> | <a href="phpscript/logout.php">Logout</a>';
}else{
echo'<a href="phpscript/check_user.php">Login</a>';
}
?></
[/code]