Parse error: syntax error, unexpected T_ELSE in C:

Please help me with this error . here is the code : I am sorry about loading a lot but they are actually two error and the second one is below this one.

<?php
session_start();
require("config.php");
require("functions.php");
$db = mysql_connect($dbhost, $dbuser, $dbpassword);
mysql_select_db($dbdatabase, $db);
$db = mysql_connect($dbhost, $dbuser, $dbpassword);
mysql_select_db($dbdatabase, $db);
if($_POST['submit']) {
$sql = "SELECT * FROM users WHERE username = '"
. $_POST['username'] . "' AND password = '"
. $_POST['password'] . "';";
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
$result = mysql_query($sql);
$numrows = mysql_num_rows($result);
if($numrows == 1) {
$row = mysql_fetch_assoc($result);
if($row['active'] == 1) {
session_register("USERNAME");
session_register("USERID");
$_SESSION['USERNAME'] = $row['username'];
$_SESSION['USERID'] = $row['id'];
switch($_GET['ref']) {
case "newpost":
if(isset($_GET['id']) == FALSE) {
header("Location: " . $config_basedir .
"/newtopic.php");
}
else {
header("Location: " . $config_basedir .
"/newtopic.php?id=" . $_GET['id']);
}
break;
case "reply":
if(isset($_GET['id']) == FALSE) {
header("Location: " . $config_basedir .
"/newtopic.php");
}
else {
header("Location: " . $config_basedir .
"/newtopic.php?id=" . $_GET['id']);
}
break;
default:
header("Location: " . $config_basedir);
break;
}
}
else {
require("header.php");
echo "This account is not verified yet. You were emailed a link
to verify the account. Please click on the link in the email to
continue.";
}
echo "This account is not verified yet. You were emailed a link
to verify the account. Please click on the link in the email to
continue.";
}
}
else {
header("Location: " . $config_basedir . "/login.php?error=1");
}
else {
require("header.php");
if($_GET['error']) {
/echo "Incorrect login, please try again!";
}
?>
<form action="<?php echo pf_script_with_get($SCRIPT_NAME); ?>"
method="post">
<table>
<tr>
<td>Username</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name="submit" value="Login!"></td>
</tr>
</table>
</form>
Don't have an account? Go and <a href="register.php">Register</a>!
<?php
}
require("footer.php");
?>


second one arse error: syntax error, unexpected T_IS_EQUAL in C:
here is the code:

<?php
session_start();
require("config.php");
require("functions.php");
$db = mysql_connect($dbhost, $dbuser, $dbpassword);
mysql_select_db($dbdatabase, $db);
$forchecksql = "SELECT * FROM forums;";
$forcheckresult = mysql_query($forchecksql);
$forchecknumrows = mysql_num_rows($forcheckresult);
if($forchecknumrows == 0) {
header("Location: " . $config_basedir);
}
if(isset($_GET['id']) == TRUE) {
if(is_numeric($_GET['id']) == FALSE) {
$error = 1;
}
if($error == 1) {
header("Location: " . $config_basedir);
}
else {
$validforum = $_GET['id'];
}
}
else {
$validforum = 0;
}
if(isset($_SESSION['USERNAME']) == FALSE) {
header("Location: " . $config_basedir . "/login.php?ref=newpost&id="
. $validforum);
}
if($_POST['submit']) {
if($validforum == 0) {
$topicsql = "INSERT INTO topics(date, user_id, forum_id, subject)
VALUES(NOW()
, " . $_SESSION['USERID']
. ", " . $_POST['forum']
. ", '" . $_POST['subject']
. "');";
}
else {
$topicsql = "INSERT INTO
topics(date, user_id, forum_id, subject) VALUES(NOW()
, " . $_SESSION['USERID']
. ", " . $validforum
. ", '" . $_POST['subject']
. "');";
}
mysql_query($topicsql);
$topicid = mysql_insert_id();
$messagesql = "INSERT INTO messages(date,
user_id, topic_id, subject, body) VALUES(NOW()
, " . $_SESSION['USERID']
. ", " . mysql_insert_id()
. ", '" . $_POST['subject']
. "', '" . $_POST['body']
. "');";
mysql_query($messagesql);
header("Location: " . $config_basedir . "/viewmessages.php?id=" .
$topicid);
}
else {
require("header.php");
if($validforum != 0) {
$namesql = "SELECT name FROM forums ORDER BY name;";
$nameresult = mysql_query($namesql);
$namerow = mysql_fetch_assoc($nameresult);
echo "<h2>Post new message to the " . $namerow['name'] . "
forum</h2>";
}
else {
echo "<h2>Post a new message</h2>";
}
?>
<form action="<?php echo pf_script_with_get($SCRIPT_NAME); ?>"
method="post">
<table>
<?php
if($validforum) == 0) {
$forumssql = "SELECT * FROM forums ORDER BY name;";
$forumsresult = mysql_query($forumssql);
?>
<tr>
<td>Forum</td>
<td>
<select name="forum">
<?php
while($forumsrow = mysql_fetch_assoc($forumsresult)) {
echo "<option value='" . $forumsrow['id'] . "'>" .
$forumsrow['name'] . "</option>";
}
?>
</select>
</td>
</tr>
<?php
}
?>
<tr>
<td>Subject</td>
<td><input type="text" name="subject"></td>
</tr>
<tr>
<td>Body</td>
<td><textarea name="body" rows="10" cols="50"></textarea></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name="submit" value="Post!"></td>
</tr>
</table>
</form>
<?php
}
require("footer.php");
?>

 

Hi

the first error:

look at

}
else {
header("Location: " . $config_basedir . "/login.php?error=1");
}
else {
require("header.php");
if($_GET['error']) {

You end an else and then have a second else right after it. You can't do this:
if (){
}
else{
}
else{
}

doesn't make sense.

The second error:

Look at this line:
if($validforum) == 0) {

you have the extra )
maybe it should be:
if($validforum == 0) {

hope it makes sense.