HELP - dont know why im getting this error???

[wblati]

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\Program Files\Apache Software Foundation\Apache2.2\htdocs\Login System v.2.0\register.php: in C:\Program Files\Apache Software Foundation\Apache2.2\htdocs\Login System v.2.0\include\session.php on line 46

[premiso]

Because session_start has to be called before any output is sent to the page. So you have output sent to the page. Post code for more help.

[wblati]

ive checked the file session.php but cant seem to locate where the error is coming from.

 

<?
/**
* Session.php
* 
* The Session class is meant to simplify the task of keeping
* track of logged in users and also guests.
*
* Written by: Jpmaster77 a.k.a. The Grandmaster of C++ (GMC)
* Last Updated: August 19, 2004
*/
include("database.php");
include("mailer.php");
include("form.php");

class Session
{
   var $username;     //Username given on sign-up
   var $userid;       //Random value generated on current login
   var $userlevel;    //The level to which the user pertains
   var $time;         //Time user was last active (page loaded)
   var $logged_in;    //True if user is logged in, false otherwise
   var $userinfo = array();  //The array holding all user info
   var $url;          //The page url current being viewed
   var $referrer;     //Last recorded site page viewed
   /**
    * Note: referrer should really only be considered the actual
    * page referrer in process.php, any other time it may be
    * inaccurate.
    */

   /* Class constructor */
   function Session(){
      $this->time = time();
      $this->startSession();
   }

   /**
    * startSession - Performs all the actions necessary to 
    * initialize this session object. Tries to determine if the
    * the user has logged in already, and sets the variables 
    * accordingly. Also takes advantage of this page load to
    * update the active visitors tables.
    */
   function startSession(){
      global $database;  //The database connection
      session_start();   //Tell PHP to start the session

      /* Determine if user is logged in */
      $this->logged_in = $this->checkLogin();

      /**
       * Set guest value to users not logged in, and update
       * active guests table accordingly.
       */
      if(!$this->logged_in){
         $this->username = $_SESSION['username'] = GUEST_NAME;
         $this->userlevel = GUEST_LEVEL;
         $database->addActiveGuest($_SERVER['REMOTE_ADDR'], $this->time);
      }
      /* Update users last active timestamp */
      else{
         $database->addActiveUser($this->username, $this->time);
      }
      
      /* Remove inactive visitors from database */
      $database->removeInactiveUsers();
      $database->removeInactiveGuests();
      
      /* Set referrer page */
      if(isset($_SESSION['url'])){
         $this->referrer = $_SESSION['url'];
      }else{
         $this->referrer = "/";
      }

      /* Set current url */
      $this->url = $_SESSION['url'] = $_SERVER['PHP_SELF'];
   }

   /**
    * checkLogin - Checks if the user has already previously
    * logged in, and a session with the user has already been
    * established. Also checks to see if user has been remembered.
    * If so, the database is queried to make sure of the user's 
    * authenticity. Returns true if the user has logged in.
    */
   function checkLogin(){
      global $database;  //The database connection
      /* Check if user has been remembered */
      if(isset($_COOKIE['cookname']) && isset($_COOKIE['cookid'])){
         $this->username = $_SESSION['username'] = $_COOKIE['cookname'];
         $this->userid   = $_SESSION['userid']   = $_COOKIE['cookid'];
      }

      /* Username and userid have been set and not guest */
      if(isset($_SESSION['username']) && isset($_SESSION['userid']) &&
         $_SESSION['username'] != GUEST_NAME){
         /* Confirm that username and userid are valid */
         if($database->confirmUserID($_SESSION['username'], $_SESSION['userid']) != 0){
            /* Variables are incorrect, user not logged in */
            unset($_SESSION['username']);
            unset($_SESSION['userid']);
            return false;
         }

         /* User is logged in, set class variables */
         $this->userinfo  = $database->getUserInfo($_SESSION['username']);
         $this->username  = $this->userinfo['username'];
         $this->userid    = $this->userinfo['userid'];
         $this->userlevel = $this->userinfo['userlevel'];
         return true;
      }
      /* User not logged in */
      else{
         return false;
      }
   }

   /**
    * login - The user has submitted his username and password
    * through the login form, this function checks the authenticity
    * of that information in the database and creates the session.
    * Effectively logging in the user if all goes well.
    */
   function login($subuser, $subpass, $subremember){
      global $database, $form;  //The database and form object

      /* Username error checking */
      $field = "user";  //Use field name for username
      if(!$subuser || strlen($subuser = trim($subuser)) == 0){
         $form->setError($field, "* Username not entered");
      }
      else{
         /* Check if username is not alphanumeric */
         if(!eregi("^([0-9a-z])*$", $subuser)){
            $form->setError($field, "* Username not alphanumeric");
         }
      }

      /* Password error checking */
      $field = "pass";  //Use field name for password
      if(!$subpass){
         $form->setError($field, "* Password not entered");
      }
      
      /* Return if form errors exist */
      if($form->num_errors > 0){
         return false;
      }

      /* Checks that username is in database and password is correct */
      $subuser = stripslashes($subuser);
      $result = $database->confirmUserPass($subuser, md5($subpass));

      /* Check error codes */
      if($result == 1){
         $field = "user";
         $form->setError($field, "* Username not found");
      }
      else if($result == 2){
         $field = "pass";
         $form->setError($field, "* Invalid password");
      }
      
      /* Return if form errors exist */
      if($form->num_errors > 0){
         return false;
      }

      /* Username and password correct, register session variables */
      $this->userinfo  = $database->getUserInfo($subuser);
      $this->username  = $_SESSION['username'] = $this->userinfo['username'];
      $this->userid    = $_SESSION['userid']   = $this->generateRandID();
      $this->userlevel = $this->userinfo['userlevel'];
      
      /* Insert userid into database and update active users table */
      $database->updateUserField($this->username, "userid", $this->userid);
      $database->addActiveUser($this->username, $this->time);
      $database->removeActiveGuest($_SERVER['REMOTE_ADDR']);

      /**
       * This is the cool part: the user has requested that we remember that
       * he's logged in, so we set two cookies. One to hold his username,
       * and one to hold his random value userid. It expires by the time
       * specified in constants.php. Now, next time he comes to our site, we will
       * log him in automatically, but only if he didn't log out before he left.
       */
      if($subremember){
         setcookie("cookname", $this->username, time()+COOKIE_EXPIRE, COOKIE_PATH);
         setcookie("cookid",   $this->userid,   time()+COOKIE_EXPIRE, COOKIE_PATH);
      }

      /* Login completed successfully */
      return true;
   }

   /**
    * logout - Gets called when the user wants to be logged out of the
    * website. It deletes any cookies that were stored on the users
    * computer as a result of him wanting to be remembered, and also
    * unsets session variables and demotes his user level to guest.
    */
   function logout(){
      global $database;  //The database connection
      /**
       * Delete cookies - the time must be in the past,
       * so just negate what you added when creating the
       * cookie.
       */
      if(isset($_COOKIE['cookname']) && isset($_COOKIE['cookid'])){
         setcookie("cookname", "", time()-COOKIE_EXPIRE, COOKIE_PATH);
         setcookie("cookid",   "", time()-COOKIE_EXPIRE, COOKIE_PATH);
      }

      /* Unset PHP session variables */
      unset($_SESSION['username']);
      unset($_SESSION['userid']);

      /* Reflect fact that user has logged out */
      $this->logged_in = false;
      
      /**
       * Remove from active users table and add to
       * active guests tables.
       */
      $database->removeActiveUser($this->username);
      $database->addActiveGuest($_SERVER['REMOTE_ADDR'], $this->time);
      
      /* Set user level to guest */
      $this->username  = GUEST_NAME;
      $this->userlevel = GUEST_LEVEL;
   }

   /**
    * register - Gets called when the user has just submitted the
    * registration form. Determines if there were any errors with
    * the entry fields, if so, it records the errors and returns
    * 1. If no errors were found, it registers the new user and
    * returns 0. Returns 2 if registration failed.
    */
   function register($subuser, $subpass, $subemail){
      global $database, $form, $mailer;  //The database, form and mailer object
      
      /* Username error checking */
      $field = "user";  //Use field name for username
      if(!$subuser || strlen($subuser = trim($subuser)) == 0){
         $form->setError($field, "* Username not entered");
      }
      else{
         /* Spruce up username, check length */
         $subuser = stripslashes($subuser);
         if(strlen($subuser) < 5){
            $form->setError($field, "* Username below 5 characters");
         }
         else if(strlen($subuser) > 30){
            $form->setError($field, "* Username above 30 characters");
         }
         /* Check if username is not alphanumeric */
         else if(!eregi("^([0-9a-z])+$", $subuser)){
            $form->setError($field, "* Username not alphanumeric");
         }
         /* Check if username is reserved */
         else if(strcasecmp($subuser, GUEST_NAME) == 0){
            $form->setError($field, "* Username reserved word");
         }
         /* Check if username is already in use */
         else if($database->usernameTaken($subuser)){
            $form->setError($field, "* Username already in use");
         }
         /* Check if username is banned */
         else if($database->usernameBanned($subuser)){
            $form->setError($field, "* Username banned");
         }
      }

      /* Password error checking */
      $field = "pass";  //Use field name for password
      if(!$subpass){
         $form->setError($field, "* Password not entered");
      }
      else{
         /* Spruce up password and check length*/
         $subpass = stripslashes($subpass);
         if(strlen($subpass) < 4){
            $form->setError($field, "* Password too short");
         }
         /* Check if password is not alphanumeric */
         else if(!eregi("^([0-9a-z])+$", ($subpass = trim($subpass)))){
            $form->setError($field, "* Password not alphanumeric");
         }
         /**
          * Note: I trimmed the password only after I checked the length
          * because if you fill the password field up with spaces
          * it looks like a lot more characters than 4, so it looks
          * kind of stupid to report "password too short".
          */
      }
      
      /* Email error checking */
      $field = "email";  //Use field name for email
      if(!$subemail || strlen($subemail = trim($subemail)) == 0){
         $form->setError($field, "* Email not entered");
      }
      else{
         /* Check if valid email address */
         $regex = "^[_+a-z0-9-]+(\.[_+a-z0-9-]+)*"
                 ."@[a-z0-9-]+(\.[a-z0-9-]{1,})*"
                 ."\.([a-z]{2,}){1}$";
         if(!eregi($regex,$subemail)){
            $form->setError($field, "* Email invalid");
         }
         $subemail = stripslashes($subemail);
      }

      /* Errors exist, have user correct them */
      if($form->num_errors > 0){
         return 1;  //Errors with form
      }
      /* No errors, add the new account to the */
      else{
         if($database->addNewUser($subuser, md5($subpass), $subemail)){
            if(EMAIL_WELCOME){
               $mailer->sendWelcome($subuser,$subemail,$subpass);
            }
            return 0;  //New user added succesfully
         }else{
            return 2;  //Registration attempt failed
         }
      }
   }
   
   /**
    * editAccount - Attempts to edit the user's account information
    * including the password, which it first makes sure is correct
    * if entered, if so and the new password is in the right
    * format, the change is made. All other fields are changed
    * automatically.
    */
   function editAccount($subcurpass, $subnewpass, $subemail){
      global $database, $form;  //The database and form object
      /* New password entered */
      if($subnewpass){
         /* Current Password error checking */
         $field = "curpass";  //Use field name for current password
         if(!$subcurpass){
            $form->setError($field, "* Current Password not entered");
         }
         else{
            /* Check if password too short or is not alphanumeric */
            $subcurpass = stripslashes($subcurpass);
            if(strlen($subcurpass) < 4 ||
               !eregi("^([0-9a-z])+$", ($subcurpass = trim($subcurpass)))){
               $form->setError($field, "* Current Password incorrect");
            }
            /* Password entered is incorrect */
            if($database->confirmUserPass($this->username,md5($subcurpass)) != 0){
               $form->setError($field, "* Current Password incorrect");
            }
         }
         
         /* New Password error checking */
         $field = "newpass";  //Use field name for new password
         /* Spruce up password and check length*/
         $subpass = stripslashes($subnewpass);
         if(strlen($subnewpass) < 4){
            $form->setError($field, "* New Password too short");
         }
         /* Check if password is not alphanumeric */
         else if(!eregi("^([0-9a-z])+$", ($subnewpass = trim($subnewpass)))){
            $form->setError($field, "* New Password not alphanumeric");
         }
      }
      /* Change password attempted */
      else if($subcurpass){
         /* New Password error reporting */
         $field = "newpass";  //Use field name for new password
         $form->setError($field, "* New Password not entered");
      }
      
      /* Email error checking */
      $field = "email";  //Use field name for email
      if($subemail && strlen($subemail = trim($subemail)) > 0){
         /* Check if valid email address */
         $regex = "^[_+a-z0-9-]+(\.[_+a-z0-9-]+)*"
                 ."@[a-z0-9-]+(\.[a-z0-9-]{1,})*"
                 ."\.([a-z]{2,}){1}$";
         if(!eregi($regex,$subemail)){
            $form->setError($field, "* Email invalid");
         }
         $subemail = stripslashes($subemail);
      }
      
      /* Errors exist, have user correct them */
      if($form->num_errors > 0){
         return false;  //Errors with form
      }
      
      /* Update password since there were no errors */
      if($subcurpass && $subnewpass){
         $database->updateUserField($this->username,"password",md5($subnewpass));
      }
      
      /* Change Email */
      if($subemail){
         $database->updateUserField($this->username,"email",$subemail);
      }
      
      /* Success! */
      return true;
   }
   
   /**
    * isAdmin - Returns true if currently logged in user is
    * an administrator, false otherwise.
    */
   function isAdmin(){
      return ($this->userlevel == ADMIN_LEVEL ||
              $this->username  == ADMIN_NAME);
   }
   
   /**
    * generateRandID - Generates a string made up of randomized
    * letters (lower and upper case) and digits and returns
    * the md5 hash of it to be used as a userid.
    */
   function generateRandID(){
      return md5($this->generateRandStr(16));
   }
   
   /**
    * generateRandStr - Generates a string made up of randomized
    * letters (lower and upper case) and digits, the length
    * is a specified parameter.
    */
   function generateRandStr($length){
      $randstr = "";
      for($i=0; $i<$length; $i++){
         $randnum = mt_rand(0,61);
         if($randnum < 10){
            $randstr .= chr($randnum+48);
         }else if($randnum < 36){
            $randstr .= chr($randnum+55);
         }else{
            $randstr .= chr($randnum+61);
         }
      }
      return $randstr;
   }
};


/**
* Initialize session object - This must be initialized before
* the form object because the form uses session variables,
* which cannot be accessed unless the session has started.
*/
$session = new Session;

/* Initialize form object */
$form = new Form;

?>

 

im getting the error on this page.

 

<html xmlns="http://www.w3.org/1999/xhtml">
<head>

<title>REGISTER PAGE - BICYCLE WORLD</title>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<style type="text/css">
<!--
body {
background: #FFF;
color: #000;
font: 62.5% "Lucida Grande", Verdana, Geneva, Helvetica, sans-serif;
margin: 0;
padding: 0;
background-color: #CCCCCC;
}

#navigation {
background: #AFD5E0 url("bg-nav.gif") repeat-x;
border: 1px solid #979797;
border-width: 1px 0;
font-size: 1.1em;
margin-top: 1em;
padding-top: .6em;
}

#navigation ul, #navigation ul li {
list-style: none;
margin: 0;
padding: 0;
}

#navigation ul {
padding: 5px 0 4px;
text-align: center;
}

#navigation ul li {
display: inline;
margin-right: .75em;
}

#navigation ul li.last {
margin-right: 0;
}

#navigation ul li a {
background: url("tab-right.gif") no-repeat 100% 0;
color: #06C;
padding: 5px 0;
text-decoration: none;
}

#navigation ul li a span {
background: url("tab-left.gif") no-repeat;
padding: 5px 1em;
}

#navigation ul li a:hover span {
color: #69C;
text-decoration: underline;
}

/*\*//*/
#navigation ul li a {
display: inline-block;
white-space: nowrap;
width: 1px;
}

#navigation ul {
padding-bottom: 0;
margin-bottom: -1px;
}
/**/

/*\*/
* html #navigation ul li a {
padding: 0;
}
/**/
// .style5 {font-family: "Tattoo Ink"}
.style5 {
font-size: 50px;
font-family: "Tattoo Ink";
color: #993300;
font-weight: bold;
}
.style6 {font-size: 1.1px}
.style7 {font-size: medium}
-->
</style>

</head>

<body>

<div id="navigation">
<ul>
	<li></li>
    <p class="style5">~BICYCLE WORLD~ </p>
    <li><span class="style6"><span class="style7"><a href="index.html"><strong>[</strong>HOME<strong>]</strong></a></span></span></li>
    <li class="style7"><a href="register.php"><strong>[</strong>REGISTER<strong>]</strong></a></li>
    <li class="style7"><a href="login.php"><strong>[</strong>LOGIN<strong>/</strong> LOGOUT<strong>]</strong></a></li>
    <li class="style7"><a href="#"><strong>[</strong>ADD PARTS<strong>]</strong></a></li>
    <li class="last"><span class="style7"><a href="#"><strong>[</strong>SEARCH<strong>]</strong></a></span></li>
    </ul>
</div>

<p align="center" class="style7"> </p>
<p align="center" class="style7">REGISTRATION PAGE</p>
<p align="center" class="style7"> </p>
</body>
</html>


<table width="528" border="0" align="center">
  <tr>
    <td><div align="justify"><span class="style8">
<?
/**--------------------------------------------------------------------------------------------------------------------------------
* Register.php
* 
* Displays the registration form if the user needs to sign-up,
* or lets the user know, if he's already logged in, that he
* can't register another name.
*
* Written by: Jpmaster77 a.k.a. The Grandmaster of C++ (GMC)
* Last Updated: August 19, 2004
*/
include("include/session.php");
?>

<html>
<title>Registration Page</title>
<body>

<?
/**
* The user is already logged in, not allowed to register.
*/
if($session->logged_in){
   echo "<h1>REGISTERED</h1>";
   echo "<p>We're sorry <b>$session->username</b>, but you've already registered. "
       ."<a href=\"index.html\">RETURN TO HOME PAGE</a>.</p>";
}
/**
* The user has submitted the registration form and the
* results have been processed.
*/
else if(isset($_SESSION['regsuccess'])){
   /* Registration was successful */
   if($_SESSION['regsuccess']){
      echo "<h1>Registered!</h1>";
      echo "<p>Thank you <b>".$_SESSION['reguname']."</b>, your information has been added to the database, "
          ."you may now <a href=\"login.php\">log in</a>.</p>";
   }
   /* Registration failed */
   else{
      echo "<h1>Registration Failed</h1>";
      echo "<p>We're sorry, but an error has occurred and your registration for the username <b>".$_SESSION['reguname']."</b>, "
          ."could not be completed.<br>Please try again at a later time.</p>";
   }
   unset($_SESSION['regsuccess']);
   unset($_SESSION['reguname']);
}
/**
* The user has not filled out the registration form yet.
* Below is the page with the sign-up form, the names
* of the input fields are important and should not
* be changed.
*/
else{
?>

<h1>REGISTER</h1>
<?
if($form->num_errors > 0){
   echo "<td><font size=\"2\" color=\"#ff0000\">".$form->num_errors." error(s) found</font></td>";
}
?>
<form action="process.php" method="POST">
<table align="left" border="0" cellspacing="0" cellpadding="3">
<tr><td>Username:</td><td><input type="text" name="user" maxlength="30" value="<? echo $form->value("user"); ?>"></td><td><? echo $form->error("user"); ?></td></tr>
<tr><td>Password:</td><td><input type="password" name="pass" maxlength="30" value="<? echo $form->value("pass"); ?>"></td><td><? echo $form->error("pass"); ?></td></tr>
<tr><td>Email:</td><td><input type="text" name="email" maxlength="50" value="<? echo $form->value("email"); ?>"></td><td><? echo $form->error("email"); ?></td></tr>
</td><td><? echo $form->error("city"); ?></td></tr>
<tr><td colspan="2" align="right">
<input type="hidden" name="subjoin" value="1">
<input type="submit" value="JOIN"></td></tr>
<tr><td colspan="2" align="left"><a href="index.html">RETURN TO HOME PAGE</a></td></tr>
</table>
</form>

<?
}
?>

</body>
</html>
</span> </div></td>
  </tr>
</table>

[premiso]

<?
/**--------------------------------------------------------------------------------------------------------------------------------
* Register.php
*
* Displays the registration form if the user needs to sign-up,
* or lets the user know, if he's already logged in, that he
* can't register another name.
*
* Written by: Jpmaster77 a.k.a. The Grandmaster of C++ (GMC)
* Last Updated: August 19, 2004
*/
include("include/session.php");
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

<title>REGISTER PAGE - BICYCLE WORLD</title>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<style type="text/css">
<!--
body {
   background: #FFF;
   color: #000;
   font: 62.5% "Lucida Grande", Verdana, Geneva, Helvetica, sans-serif;
   margin: 0;
   padding: 0;
   background-color: #CCCCCC;
}

#navigation {
   background: #AFD5E0 url("bg-nav.gif") repeat-x;
   border: 1px solid #979797;
   border-width: 1px 0;
   font-size: 1.1em;
   margin-top: 1em;
   padding-top: .6em;
}

#navigation ul, #navigation ul li {
   list-style: none;
   margin: 0;
   padding: 0;
}

#navigation ul {
   padding: 5px 0 4px;
   text-align: center;
}

#navigation ul li {
   display: inline;
   margin-right: .75em;
}

#navigation ul li.last {
   margin-right: 0;
}

#navigation ul li a {
   background: url("tab-right.gif") no-repeat 100% 0;
   color: #06C;
   padding: 5px 0;
   text-decoration: none;
}

#navigation ul li a span {
   background: url("tab-left.gif") no-repeat;
   padding: 5px 1em;
}

#navigation ul li a:hover span {
   color: #69C;
   text-decoration: underline;
}

/*\*//*/
#navigation ul li a {
   display: inline-block;
   white-space: nowrap;
   width: 1px;
}

#navigation ul {
   padding-bottom: 0;
   margin-bottom: -1px;
}
/**/

/*\*/
* html #navigation ul li a {
   padding: 0;
}
/**/
// .style5 {font-family: "Tattoo Ink"}
.style5 {
   font-size: 50px;
   font-family: "Tattoo Ink";
   color: #993300;
   font-weight: bold;
}
.style6 {font-size: 1.1px}
.style7 {font-size: medium}
-->
</style>

</head>

<body>

<div id="navigation">
   <ul>
      <li></li>
       <p class="style5">~BICYCLE WORLD~ </p>
       <li><span class="style6"><span class="style7"><a href="index.html"><strong>[</strong>HOME<strong>]</strong></a></span></span></li>
       <li class="style7"><a href="register.php"><strong>[</strong>REGISTER<strong>]</strong></a></li>
       <li class="style7"><a href="login.php"><strong>[</strong>LOGIN<strong>/</strong> LOGOUT<strong>]</strong></a></li>
       <li class="style7"><a href="#"><strong>[</strong>ADD PARTS<strong>]</strong></a></li>
       <li class="last"><span class="style7"><a href="#"><strong>[</strong>SEARCH<strong>]</strong></a></span></li>
    </ul>
</div>

<p align="center" class="style7"> </p>
<p align="center" class="style7">REGISTRATION PAGE</p>
<p align="center" class="style7"> </p>
</body>
</html>


<table width="528" border="0" align="center">
  <tr>
    <td><div align="justify"><span class="style8">


<html>
<title>Registration Page</title>
<body>

<?
/**
* The user is already logged in, not allowed to register.
*/
if($session->logged_in){
   echo "<h1>REGISTERED</h1>";
   echo "<p>We're sorry <b>$session->username</b>, but you've already registered. "
       ."<a href=\"index.html\">RETURN TO HOME PAGE</a>.</p>";
}
/**
* The user has submitted the registration form and the
* results have been processed.
*/
else if(isset($_SESSION['regsuccess'])){
   /* Registration was successful */
   if($_SESSION['regsuccess']){
      echo "<h1>Registered!</h1>";
      echo "<p>Thank you <b>".$_SESSION['reguname']."</b>, your information has been added to the database, "
          ."you may now <a href=\"login.php\">log in</a>.</p>";
   }
   /* Registration failed */
   else{
      echo "<h1>Registration Failed</h1>";
      echo "<p>We're sorry, but an error has occurred and your registration for the username <b>".$_SESSION['reguname']."</b>, "
          ."could not be completed.<br>Please try again at a later time.</p>";
   }
   unset($_SESSION['regsuccess']);
   unset($_SESSION['reguname']);
}
/**
* The user has not filled out the registration form yet.
* Below is the page with the sign-up form, the names
* of the input fields are important and should not
* be changed.
*/
else{
?>

<h1>REGISTER</h1>
<?
if($form->num_errors > 0){
   echo "<td><font size=\"2\" color=\"#ff0000\">".$form->num_errors." error(s) found</font></td>";
}
?>
<form action="process.php" method="POST">
<table align="left" border="0" cellspacing="0" cellpadding="3">
<tr><td>Username:</td><td><input type="text" name="user" maxlength="30" value="<? echo $form->value("user"); ?>"></td><td><? echo $form->error("user"); ?></td></tr>
<tr><td>Password:</td><td><input type="password" name="pass" maxlength="30" value="<? echo $form->value("pass"); ?>"></td><td><? echo $form->error("pass"); ?></td></tr>
<tr><td>Email:</td><td><input type="text" name="email" maxlength="50" value="<? echo $form->value("email"); ?>"></td><td><? echo $form->error("email"); ?></td></tr>
</td><td><? echo $form->error("city"); ?></td></tr>
<tr><td colspan="2" align="right">
<input type="hidden" name="subjoin" value="1">
<input type="submit" value="JOIN"></td></tr>
<tr><td colspan="2" align="left"><a href="index.html">RETURN TO HOME PAGE</a></td></tr>
</table>
</form>

<?
}
?>

</body>
</html>
   </span> </div></td>
  </tr>
</table>

 

Should fix it. Read the error, there is output before you use it, so move it before output.

[Mark Baker]

You're getting the error because you're sending output to the browser at line 8 of register.php and then subsequently trying to issue session_start() at line 46 session.php.

 

session_start() must be executed before any output is sent