foetus
23-01-2008, 21:25:07
necesito una pequena esplicacion de como usar la funcion header().
tengo este fragmento de codigo.
if ($_SESSION["usuario"]=="" || $_SESSION["password"]=="")
{
header("Location: login.php");
exit;
}
pero me muestra los sigtes. errores.
Warning: session_start() [function.session-start (http://localhost/arpim_php/control/function.session-start)]: Cannot send session cookie - headers already sent by (output started at C:\xampp\htdocs\Arpim_PHP\control\index.php:1) in C:\xampp\htdocs\Arpim_PHP\control\index.php on line 1
Warning: session_start() [function.session-start (http://localhost/arpim_php/control/function.session-start)]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\Arpim_PHP\control\index.php:1) in C:\xampp\htdocs\Arpim_PHP\control\index.php on line 1
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\Arpim_PHP\control\index.php:1) in C:\xampp\htdocs\Arpim_PHP\control\index.php on line 5
no se porque pasa esto, ya que tengo ese mismo codigo en otras paginas y me habia resultado..????
tengo este fragmento de codigo.
if ($_SESSION["usuario"]=="" || $_SESSION["password"]=="")
{
header("Location: login.php");
exit;
}
pero me muestra los sigtes. errores.
Warning: session_start() [function.session-start (http://localhost/arpim_php/control/function.session-start)]: Cannot send session cookie - headers already sent by (output started at C:\xampp\htdocs\Arpim_PHP\control\index.php:1) in C:\xampp\htdocs\Arpim_PHP\control\index.php on line 1
Warning: session_start() [function.session-start (http://localhost/arpim_php/control/function.session-start)]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\Arpim_PHP\control\index.php:1) in C:\xampp\htdocs\Arpim_PHP\control\index.php on line 1
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\Arpim_PHP\control\index.php:1) in C:\xampp\htdocs\Arpim_PHP\control\index.php on line 5
no se porque pasa esto, ya que tengo ese mismo codigo en otras paginas y me habia resultado..????