[SOLVED] Tricky Error

[hasek522]

I get the following error on one of my php pages:

 

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/brandoo8/public_html/mrsnap/comment.php:2) in /home/brandoo8/public_html/mrsnap/config.php on line 2

 

This page is similiar to every other page but is the only one with this error.

 

Here is the page code:

 

comment.php

<?php

include('config.php');

include('header.php');

 

 

$id = $_GET['id'];

echo '<form id="form1" method="post" action="comment.php?id='.$id.'">

Your name: <input name="user" type="text" size="50" maxlength="250" /><br />

<label>Comment

<textarea name="text" cols="50"></textarea>

</label>

 

<br />

<input type="submit" name="Submit" value="Submit" />';

 

if(isset($_POST['Submit'])  && $_POST['user'] != "" && $_POST['text'] != "")

{

$id = $_GET['id'];

$db = mysql_connect('localhost','brandoo8_Brotsky','bb226306');

mysql_select_db('brandoo8_MrSnapPHP', $db);

$sql = "INSERT INTO comments (picid, name, text)

VALUES (".$id.", '".$_POST['user']."', '".$_POST['text']."');";

mysql_query($sql);

mysql_close($db);

echo '<a href="http://mrsnap.net/picture.php?id='.$id.'">Return to Picture</a>';

}

 

?>

 

<?php

include('counter.php');

include('footer.php');

?>

[craygo]

post code for config.php

[anon_login_001]

Check your config.php ...

 

Be sure that session_cache_limiter() is happening BEFORE any calls to session_start()

 

Can you show parts of the config.php  (without revealing passwords, etc) ?

[hasek522]

config.php

 

<?php

session_start();

 

// new one

$dbhost = "localhost";

$dbuser = "brandoo8_Brotsky";

$dbpassword = "myPasswordHere";

$dbdatabase = "brandoo8_MrSnapPHP";

 

$config_site = "MrSnap.net";

 

$config_adminemail = "[email protected]";

 

$config_basedir = "http://mrsnap.net/";

 

function isLoggedIn()

{

if($_SESSION['USERNAME'] <> '')

{

return true;

}

else

{

return false;

}

}

?>

 

[hasek522]

user-functions.php

 

<?PHP

    //Include the database connection

    include "config.php";

 

    //In order to work with sessions we need use session_start()

    session_start();

 

 

    //Return true if the session is set

    function is_logged_in(){

        return isset($_SESSION['loggedIn']);

    }

 

    //Check to see if they posted a value called "login"

    function is_logging_in(){

        return isset($_POST['submit']);

    }

function resizeImage($originalImage,$toWidth,$toHeight){

   

    // Get the original geometry and calculate scales

    list($width, $height) = getimagesize($originalImage);

    $xscale=$width/$toWidth;

    $yscale=$height/$toHeight;

   

    // Recalculate new size with default ratio

    if ($yscale>$xscale){

        $new_width = round($width * (1/$yscale));

        $new_height = round($height * (1/$yscale));

    }

    else {

        $new_width = round($width * (1/$xscale));

        $new_height = round($height * (1/$xscale));

    }

 

    // Resize the original image

    $imageResized = imagecreatetruecolor($new_width, $new_height);

    $imageTmp    = imagecreatefromjpeg ($originalImage);

    imagecopyresampled($imageResized, $imageTmp, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

 

    return $imageResized;

}

 

    //Function to show the login form

    function loginForm(){

        print '

        <form method="post">

        <strong>Username:</strong> <input type="text" name="username" /><br />

        <strong>Password:</strong> <input type="password" name="password" /><br />

        <input type="submit" name="submit" value="Login" />

        </form>';

    }

 

    //See if the login matches a user in the database

    function login($username, $password){

     

        //Clean the values of XSS and Injections

        $username = trim(htmlentities(strip_tags($username), ENT_QUOTES, 'UTF-8'));

        $password = md5(trim($password));

     

        //Create the MySQL Query

        $query = 'SELECT * FROM `registered` WHERE `username` = \''.mysql_real_escape_string($username). '\' AND password = \''. mysql_real_escape_string($password). '\'';

 

echo mysql_real_escape_string($username) . '<br />';

echo mysql_real_escape_string($password) . '<br />';

 

        $result = mysql_query($query);

     

        //If we found 1 or more users that matched the login

        if(mysql_num_rows($result) > 0) {

     

            $_SESSION['loggedIn'] = true;

                     

        } else {

            echo '<strong>Bad login!</strong><br />';

            loginForm(); //here we ask the user to login again...

            exit;

        }

     

    }

?>

[anon_login_001]

Ensure that there is NO WHITESPACE before the " <?php " tag at the beginning of the comment.php file.

 

I'm still looking over it, but that's one thing to check...

[anon_login_001]

The problem could be in user-functions .... where are you using that?

 

in config.php you use session_start()....

 

You're including config.php in user-functions.php, and then using session_start() in user-functions.php ...

 

That is likely the culprit.

[hasek522]

Wow the white space thing was it.  Thanks to all of you so much for helping me out so fast.  This is my first time on this forum and im still amazed about how helpful it has been.

[anon_login_001]

Just remember to "pay it forward" when you become an elite PHP hax0r... =)

Oh, and be sure to mark this thread as "Solved"