PHP - Problem With Unset() And Exit()

I have 3 php's

home.php

createStep1.php

createCheckPass.php

createStep2.php

home.php unsets some $_SESSION variables if they still exist from previous pages:
Code: [Select]
if(!empty($_SESSION['ame']))
{
unset($_SESSION['ame']);
}
if(!empty($_SESSION['ject']))
{
unset($_SESSION['ject']);
}
if(!empty($_SESSION['ports']))
{
unset($_SESSION['ports']);
}
if(!empty($_SESSION['session_age_range']))
{
unset($_SESSION['range']);
}

createCheckPass.php gets some posted information from createStep1.php, checks everything is ok and if so sets the above session variables

createStep2.php gets the session data set by createCheckPass.php and then gets to work with the user inputting data into the db.

The odd problem
If createCheckPass.php finds any problems with the posted data it redirects the user back to createStep1.php with the sessions set, createStep1.php then displays the errors with the info set in the sessions to the user and everything works ok.

If however the user sends the form from createStep1.php with no problems and the createCheckPass.php passes the user onto createStep2.php, something strange happens...
The sessions set by the createCheckPass.php are only ever unset at the home.php, yet somehow createStep2.php loses the sessions and therefore doesn't run.

What is even stranger is if i comment out the unsetting of the sessions from the home.php, everything works fine and none of the sessions are lost. Really really odd


Summary:
createStep2.php is reading the unset session lines of code from home.php when never asked to.

Has anyone ever come across anything like this before?

hi guys..

im not sure if im in the right section but.

i have this script below and it exits BUT i would like it to exit After it applies the CSS to my Error.

i want it to display nothing except the error if there is an error.. the php is being included on the index.php page which links to the css.

this works IF i put the include after the CSS link but wondering if theres a better way.


PHP
<?php


$host = 'localhost';
$user = 'user';
$pass = 'password';
$db = 'upload';
$link = @mysqli_connect( $host, $user, $pass, $db);

if(!$link){?> 
<div id='conn_error'> <?php
echo 'There was an Error Connecting to the Server';
?>
</div><?php 

}

?>


Css
Code: [Select]
#conn_error{
background: red;
font-size: 24px;
font-family: arial;
color: white;
width: 500px;
text-align: center;
border: solid 2px black;
position: absolute;
top: 150px;
left: 30%;
padding: 2px;

}

The code seems to cear debug until I attempt to exit after doing a while loop.

PHP Parse error: syntax error, unexpected T_ELSE in C:\Users\Bob\Desktop\TAFT WEB\test\login.php on line 46

Here's the code:

<?php
/*
-----------------------NOVEMBER 2010--------------------
*/

// User has 3 trys to enter correct username and password
// increment by one
$num_log = ($num_logs + 1);

if ($_POST['username'])
{

//Connect to the database through our include
include_once "connect_to_mysql.php";
$username = stripslashes($_POST['username']);
$username = strip_tags($username);
$username = mysql_real_escape_string($username);

$password = ereg_replace("[^A-Za-z0-9]", "", $_POST['password']); // filter everything but numbers and letters
$password = md5($password);
}

// Make query and then register all database data that -
// cannot be changed by member into SESSION variables.
// Data that you want member to be able to change -
// should never be set into a SESSION variable.
$sql = mysql_query("SELECT * FROM register WHERE username='$username' AND password='$password'");
$login_check = mysql_num_rows($sql);
if($login_check > 0); {
    while($row = mysql_fetch_array($sql)){
        // Get member ID into a session variable
        $id = $row["id"];
        session_register('id');
        $_SESSION['id'] = $id;
        // Get member username into a session variable
    $username = $row["username"];
        session_register('username');
        $_SESSION['username'] = $username;
        // Update last_log_date field for this member now
        mysql_query("UPDATE user_log SET log_on=now() WHERE id='$id'");
        // Print success message here if all went well then exit the script
header("location: memPage.shtml php?id=$id");
exit();
    }
    // close while
ERROR --->    else {
             exit()
    }

    // Print login failure message to the user and link them back to your login page
       print '<br><br>
       <font color="#FF0000">
       No match was found in our member records, try again.
       </font>
       <br><br>
       <a href="login.php">Click here</a> to go back to the login page.';
       exit();
// close if post
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Login to your profile</title>

<script type="text/javascript">
<!-- Form Validation -->
function validate_form ( ) {
valid = true;
if ( document.logform.email.value == "" ) {
alert ( "Please enter your User Name" );
valid = false;
}
if ( document.logform.pass.value == "" ) {
alert ( "Please enter your password" );
valid = false;
}
return valid;
}
<!-- Form Validation -->
</script>

</head>

<body>
     <div align="center">
       <h3 style="test-align:center;font-weight:bold; color:blue;padding-top:25px;padding-bottom;15px;">
       Log in to your account here
       </h3>
     </div>

     <table align="center" cellpadding="5">
      <form action="login.php" method="post" enctype="multipart/form-data" name="logform" id="logform" onsubmit="return validate_form ( );">
        <tr>
          <td class="style7"><div align="right">Username:</div></td>
          <td><input name="username" type="varchar" id="username" size="30" maxlength="50" /></td>
        </tr>
        <tr>
          <td class="style7"><div align="right">Password:</div></td>
          <td><input name="password" type="password" id="password" size="50" maxlength="24" /></td>
        </tr>
        <tr>
          <td>&nbsp;</td>
          <td><input name="Submit" type="submit" value="Login" /></td>
        </tr>
      </form>
    </table>
</body>
</html>

I'm new to php and I created a user registration form. But whenever I submit the form, part of my page doesn't load. I see the "successful registration" message, but I don't see my right sidebar, footer, or my wrapper div. After searching the internet all day, I concluded it was the exit() function. But if I leave in the exit function and submit the form, all of my page loads, but the original registration form is still shown below my "successful registration" message. Can someone please help?

Code: [Select]
<?php
            require_once('_includes/connectvars.php');

            if (isset($_POST['submitted'])) {
            $firstname = mysql_real_escape_string(trim($_POST['firstname']));
            $lastname = mysql_real_escape_string(trim($_POST['lastname']));
            $email = mysql_real_escape_string(trim($_POST['email']));
            $birthdate = mysql_real_escape_string(trim($_POST['birthdate']));
            $zipcode = mysql_real_escape_string(trim($_POST['zipcode']));
            $gender = $_POST['gender'];
            $username = mysql_real_escape_string(trim($_POST['username']));
            $password1 = mysql_real_escape_string(trim($_POST['password1']));
            $password2 = mysql_real_escape_string(trim($_POST['password2']));
            $terms = $_POST['terms'];
            $newsletter = $_POST['newsletter'];
            $activationkey = mt_rand() . mt_rand() . mt_rand() . mt_rand() . mt_rand();

            $captchchk = 1;
            require_once('_includes/recaptchalib.php');
            $privatekey = "some#";
            $resp = recaptcha_check_answer ($privatekey,
            $_SERVER["REMOTE_ADDR"],
            $_POST["recaptcha_challenge_field"],
            $_POST["recaptcha_response_field"]);

            if (preg_match ('%^[A-Za-z\.\' \-]{2,15}$%', stripslashes(trim($_POST['firstname'])))) {
            $firstname = escape_data($_POST['firstname']);
            } else {
                $firstname = FALSE;
                echo '<p class="error">Please enter a valid first name!</p>';
                }

            if (preg_match ('%^[A-Za-z\.\' \-]{2,30}$%', stripslashes(trim($_POST['lastname'])))) {
                $lastname = escape_data($_POST['lastname']);
                } else {
                    $lastname = FALSE;
                    echo '<p class="error">Please enter a valid last name!</p>';
                    }
            if (preg_match('%^(0?[1-9]|1[012])[/](0?[1-9]|[12][0-9]|3[01])[/](19|20)?[0-9]{2}$%', stripslashes(trim($_POST['birthdate'])))) {
                $birthdate = escape_data($_POST['birthdate']);
                } else {
                    $birthdate = FALSE;
                    echo '<p class="error">Please enter a valid date of birth in the format of MM/DD/YYYY</p>'; 
                    }

            if (preg_match ('%^[0-9]{5}$%', stripslashes(trim($_POST['zipcode'])))) {
                $zipcode = escape_data($_POST['zipcode']);
                } else {
                    $zipcode = FALSE;
                    echo '<p class="error">Please enter a valid 5 digit zip code!</p>';
                    }

            if ($gender !== 'M') {
                if ($gender !== 'F') {
                    echo '<p class="error">Please select your gender!</p>';
                    }
                }

            if (preg_match ('%^[A-Za-z][A-Za-z0-9]*(?:_[A-Za-z0-9]+)*(\S{4,75})$%', stripslashes(trim($_POST['username'])))) { 
                $username = escape_data($_POST['username']);
                } else {
                    $username = FALSE;
                    echo '<p class="error">Please enter a valid username!</p>';
                    }

            if (preg_match ('%^[A-Za-z0-9]{6,15}$%', stripslashes(trim($_POST['password1'])))) {
                $password1 = escape_data($_POST['password1']);
                if (($_POST['password1'] == $_POST['password2']) && ($_POST['password1'] != $_POST['username'])) {
                     $password1 = escape_data($_POST['password1']);
                     } elseif ($_POST['password1'] == $_POST['username']) {
                         $password1 = FALSE;
                         echo '<p class="error">Your password cannot be the same as the username!</p>';
                         } else {
                             $password1 = FALSE;
                             echo '<p class="error">Your password did not match the confirmed password!</p>';
                             }
                             } else {
                                 $password1 = FALSE;
                                 echo '<p class="error">Please enter a valid password!</p>';
                                 }

            if ($terms !== 'Y') {
                echo '<p class="error">You must agree to the terms of use!</p>';
                }

            if (!$resp->is_valid) {
                echo '<p class="error">The CAPTCHA Code wasn\'t entered correctly!</p>';
                $captchchk = 0;
                }

                if ($firstname && $lastname && $email && $birthdate && $zipcode && $gender && $username && $password1 &&
                  $terms && $captchchk) {
                      $query = "SELECT * FROM members WHERE username = '$username'";
                      $result = mysql_query($query) or trigger_error(mysql_error().$query);
                      if(mysql_num_rows($result) == 1) {
                          echo '<br><br><p class="error">An account already exists for this username. Please select a different
                          username.</p>';
                          $username = "";
                          } else {
                              if(mysql_num_rows($result) == 0) {
                                  $query = "INSERT INTO members (first_name, last_name, email, dob, zip_code, gender, username,     password, join_date, newsletter, active, terms, status) VALUES ('$firstname', '$lastname', '$email', STR_TO_DATE('$birthdate', '%m/%d/%Y'), '$zipcode', '$gender', '$username', SHA('$password1'), NOW(), '$newsletter', '$activationkey', '$terms', 'verify')";
                                  $result = mysql_query($query) or trigger_error(mysql_error().$query);
                                  if (mysql_affected_rows() == 1) {
                                      $to = $_POST['email'];
                                      $subject = "Registration";
                                      $message = "Welcome to Mysite.com!\n\nYou, or someone using your email address, has completed registration at Mysite.com. You can complete registration by clicking the following link:\n\nhttp://www.mysite.com/verify.php?$activationkey\n\nIf this is an error, ignore this email and you will be removed from our mailing list.\n\nRegards,\n\nThe Mysite.com Team";
                                      $headers = 'From: noreply@ Mysite.com' . "\r\n" .
                                      'Reply-To: noreply@ Mysite.com' . "\r\n" .
                                      'X-Mailer: PHP/' . phpversion();
                                      mail($to, $subject, $message, $headers);
                                      echo '<br /><br /><p>Thank you for registering! A confirmation email has been sent to your email. Please click on the link in that email in order to activate your account.</p>';
                                      } else {
                                          $queryString = $_SERVER['QUERY_STRING'];
                                          $query = "SELECT * FROM members";
                                          $result = mysql_query($query) or trigger_error(mysql_error().$query);
                                          while($row = mysql_fetch_array($result)){
                                              if ($queryString == $row["active"]){
                                                  echo "Congratulations!" . $row["username"] . " is now a member of Mysite.com!";
                                                   $query="UPDATE members SET active = '', status='activated' WHERE (user_id =
                                                   $row[user_id])";
                                                   if (!mysql_query($query)) {
                                                       die('Error: ' . mysql_error());
                                                       }
                                              }
                                          }
                                      }
                              }
                          }
                  }
                  exit();
                  mysql_close();
            }

HI,
I have a foreach loop but after some execution it begins to show me this:Invalid argument supplied for foreach() ...  so I want to exit from it.how can I do that?

Thanks