Chi mi aiuta? Sto impazzendo...
Perchè ottengo questo errore?codice:<? //start the session session_start(); if (isset($_SESSION['sid'])) { $msg = "ALREADY_LOGGED"; } // LOGGED else { header ("location: test2.php"); } ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Documento senza titolo</title>
codice:Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /www/main.php:1) in /www/main.php on line 3

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