php cookie question - Webmaster Forum - Web Design, Programming and SEO forums

05-22-2006, 05:15 PM

dan1088352

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php cookie question

PHP Code:


			
<html>

<head>

<title>Untitled Document</title>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

</head>



<body>

<?

//get the post data

$post_username = $_POST["username"];

$post_pass = $_POST["pass"];



mysql_connect("-------","--------","--------");

mysql_select_db("-------");



$sql = mysql_query("SELECT * FROM users WHERE username = '$post_username'") or die("$username doesnt exist in our records");



$pass= mysql_result($sql,'0',"password");

$username = mysql_result($sql,'0',"username");

$id = mysql_result($sql,'0',"id");



if($post_username == $username && $post_password == $password)

{

    echo "you are now logged in, please wait as I redirect you back to the index, click 

    <a href = \"index.php\">here if you arent directed</a>";

    

[B]    setcookie("image_login","$id|$username|$pass");[/B]

}



else

{

    echo" failed login, incorrect username or pass";

}

mysql_close();

?>

</body>

</html>

it gives me this error on the bolded line

Warning: Cannot modify header information - headers already sent by (output started at /home/theev2/public_html/forumresources/imagehost/login.php:8) in /home/theev2/public_html/forumresources/imagehost/login.php on line 27

what does that mean? ive done a million scripts with setcookie just like that

05-22-2006, 11:27 PM

Dray

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The cookie needs to be set ABOVE everything else. What i mean is that the setcookie needs to go above:

PHP Code:


			
<html>

<head>

<title>Untitled Document</title>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

</head>



<body>

and above any print() or echo().

For example:

PHP Code:


			
echo "you are now logged in, please wait as I redirect you back to the index, click 

    <a href = \"index.php\">here if you arent directed</a>";

    

    setcookie("image_login","$id|$username|$pass");







 ;

it still won't work because you have that echo above it.

05-23-2006, 03:59 AM

dan1088352

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ok, thanks

05-23-2006, 04:05 AM

jono1

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Best to simply set the cookie and then execute a header("location: loggedinurl.php");, no real need to tell them that they've been logged in IMO, as long as they end up where they need to be.