Well, I'm still a newbie programming PHP... but I already read several ebooks and another book I have.... still unable to fix this issue.

What I'm trying to do is login system, but the cookie is unable to be set.

I tried writting the code on a separate file, and it doesn't work.

This is the code I currently have (named usuario.php)

code:

---

<?php
error_reporting(E_ALL);
require('./inc/connect.php');
echo ("<br /> Webaction: ".$webaction."<br />");
echo ($_COOKIE['lagoweb[username]']);

//Desloguea al usuario
if ($webaction == "logout") {
echo ("Testing logout");
setcookie('lagoweb[username]');
}

//Procesa la forma de login
elseif ($webaction == "login") {
if (isset($_COOKIE['lagoweb[username]'])) {
echo "You are already logged in!, do you want to <a href=usuario.php?webaction=logout>logout</a>?";
} else {
echo ("<form method='POST' class='loginform'><table><tr><td>Usuario/td><td><input type='text' name='username'></td></tr><tr><td>Contrase&ntilde;a/td><td><input type='password' name='password'></td></tr><tr><td><input type='submit'></td></tr><tr><td><input type='hidden' value='do_login' name='webaction'></td></tr>
</table></form>");
}
}

//Proceso de inicio de sesion
elseif ($webaction == "do_login") {
$dbquery = mysql_query("SELECT * FROM users WHERE username = '$username' AND password = '$password'") or die (mysql_error);
if (mysql_num_rows($dbquery) == 1) {
setcookie("lagoweb[username]",$username,time()+3600);
echo "Success!";
} else {
echo "Failed";
}
}
?>

---

you cant do anything with cookies once there is text on the page...

So, I'll need to move setcookie(...) to another file?

Just make sure you set your cookies before you output anything. So no echo lines before your setcookie() lines. Alternatively, you could use output buffering.

Also, this code won't work as expected...

$_COOKIE['lagoweb[username]']

PHP will create an array based on that cookie name, so you should use...

$_COOKIE['lagoweb']['username']

Worst case scenario, if you have no way but to have text output before having to set the cookie (I really don't see why that would be the case, but it is a purely hypothetical situation I am dealing with anyway) you can always use javascript to set the cookie....

Awesome! Thanks guys! It's working now.