PHP - Moved: What Area Of Php Does This Cover??? (transcript Included)

This topic has been moved to JavaScript Help.

http://www.phpfreaks.com/forums/index.php?topic=347131.0

I'm a newbie and want to explore on the use of php.I want to create a transcript system but do not know how to go about it.please where should i start from?

Hello everybody, I have a problem with my site I am making. http://gmann.gflclan.com/index.php (this is a test site, I am not even near close to being done with it). The problem I am having is, when I make my browser smaller, the navbar body doesn't move down (expand).

#navbar {
	width:auto;
	height: 5%;
	position:relative;
	background:url(images/transbg4.png);
	border-radius:15px 15px 0px 0px;
	box-shadow: 5px 5px 10px #121212;
	margin-left: 30%;
	margin-right: 30%;
	color: white;
	text-align: left;
}

There's the code. I think it has to do with "height: 5%;". Do you guys have any idea on how to fix this. I am learning coding, and sorry if this is a "noob" question. Also, if you want, feel free to give suggestions for the site, I already know it looks horrible but I plan on making it better in the future.   Here is the navbar in the PHP file I made:

		<div id="navbar">
			<ul id="nav_links">
				<?php
					$query = "SELECT * FROM `navlist` ORDER BY `lorder` ASC";
					$result = mysqli_query($db, $query) or die ('Error with the nav list query! Error: ' . mysqli_error($db));
					while ($nav = mysqli_fetch_assoc($result)) {
						echo '<div class="navlink">';
							$target = '';
							if($nav['newpage'] == 1) {
								$target = 'target=_blank';
							} else {
								$target = '';
							}
							echo '<li class="nav_button"><a href="' . $nav['link'] . '" ' . $target . '>' . $nav['name'] . '</a></li>';
						echo '</div>';
					}
				?>
			</ul>
		</div>

Thanks, Gamemann

I understand that this is a header error but i still do not know how to fix it.
I am trying to create a login box that is in the top right corner of my site. Once the user uses it to log in they need to be redirected to the account page. i include the login_box.php file in the appropriate div. however the file uses header("Location: account.php"); to redirect the user. because this file is included after the header i receive Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\index.php:17) in C:\xampp\htdocs\layout_inc\login_box.php on line 76
What would be the correct way to do this. My code is bellow. Thank you in advance
<?php 
//Forms posted

if(!empty($_POST))
{
$errors = array();
$username = trim($_POST["username"]);
$password = trim($_POST["password"]);
$remember_choice = trim($_POST["remember_me"]);

//Perform some validation
//Feel free to edit / change as required
if($username == "")
{
$errors[] = lang("ACCOUNT_SPECIFY_USERNAME");
}
if($password == "")
{
$errors[] = lang("ACCOUNT_SPECIFY_PASSWORD");
}

//End data validation
if(count($errors) == 0)
{
//A security note here, never tell the user which credential was incorrect
if(!usernameExists($username))
{
$errors[] = lang("ACCOUNT_USER_OR_PASS_INVALID");
}
else
{
$userdetails = fetchUserDetails($username);

//See if the user's account is activation
if($userdetails["Active"]==0)
{
$errors[] = lang("ACCOUNT_INACTIVE");
}
else
{
//Hash the password and use the salt from the database to compare the password.
$entered_pass = generateHash($password,$userdetails["Password"]);

if($entered_pass != $userdetails["Password"])
{
//Again, we know the password is at fault here, but lets not give away the combination incase of someone bruteforcing
$errors[] = lang("ACCOUNT_USER_OR_PASS_INVALID");

}
else
{
//Passwords match! we're good to go'

//Construct a new logged in user object
//Transfer some db data to the session object
$loggedInUser = new loggedInUser();
$loggedInUser->email = $userdetails["Email"];
$loggedInUser->user_id = $userdetails["User_ID"];
$loggedInUser->hash_pw = $userdetails["Password"];
$loggedInUser->display_username = $userdetails["Username"];
$loggedInUser->clean_username = $userdetails["Username_Clean"];
$loggedInUser->remember_me = $remember_choice;
$loggedInUser->remember_me_sessid = generateHash(uniqid(rand(), true));
//Update last sign in
$loggedInUser->updateLastSignIn();

if($loggedInUser->remember_me == 0)
$_SESSION["userCakeUser"] = $loggedInUser;
else if($loggedInUser->remember_me == 1) {
$db->sql_query("INSERT INTO ".$db_table_prefix."Sessions VALUES('".time()."', '".serialize($loggedInUser)."', '".$loggedInUser->remember_me_sessid."')");
setcookie("userCakeUser", $loggedInUser->remember_me_sessid, time()+parseLength($remember_me_length));
}

//Redirect to user account page

header("Location: account.php");
die();
}
}
}
}
}

if(!isUserLoggedIn()) {?><form name="newUser" action="<?php echo $_SERVER['PHP_SELF'] ?>" method="post">
                <table>
<tr>
<td>
<label>Username:</label>
</td>
<td>
<input type="text" name="username" />
</td>
</tr>
<tr>
<td>
<label>Password:</label>
</td>
<td>
<input type="password" name="password" />
</td>
</tr>
<tr>
<td>
<label>&nbsp;</label>
<input type="submit" value="Login" class="submit"/>
</td>
<td>
<input type="checkbox" name="remember_me" value="1" /> <label style="font-size:12px">Remember Me?</label>
</td>
</tr>
</table>
<div style="text-align:center;">
<a href="register.php" class="info">Register</a> | <a href="forgot-password.php" class="info">Forgot Password?</a>
</div>
</form><?php }
else{?><h1>Welcome <?php echo $loggedInUser->display_username; ?> </h1>
 <br/>

<a href="account.php" class="info">Dashboard</a> | <a href="logout.php" class="info">Logout</a><?php }

?>

Hy!
I have 3 files:

file 1 (index.php) includes 2 files: file2.php and file3.php

File2.php contains $aditionalStuff and in file3.php I want to use $aditionalStuff, but it wont work (like it wasn't initialized).

How can I make this work?

index.php

include "file2.php";
include "file3.php";


file2.php

$aditionalStuff = 'some stuff';


file3.php

echo $aditionalStuff;


Thanks!