Código PHP:
if ($_SESSION['s_login']!=""){
include('Cabecera.php');
include_once('includes/validacion_rango.php');
Código PHP:
*Warning: include(/Cabecera.php) [function.include]: failed to open stream: No such file or directory in
*Warning: include(../Cabecera.php)
Warning: include(Cabecera.php) [function.include]: