function versupervariables()
{
	echo "<b>_COOKIE</b><br />";
	foreach($_COOKIE as $clave=>$valor)
	{
	echo $clave." = ".$valor."<br />";
	}
	echo "<b>_ENV</b><br />";
	foreach($_ENV as $clave=>$valor)
	{
	echo $clave." = ".$valor."<br />";
	}
	echo "<b>_FILES</b><br />";
	foreach($_FILES as $clave=>$valor)
	{
	echo $clave." = ".print_r($valor)."<br />";
	}
	echo "<b>_GET</b><br />";
	foreach($_GET as $clave=>$valor)
	{
	echo $clave." = ".$valor."<br />";
	}
	echo "<b>_POST</b><br />";
	foreach($_POST as $clave=>$valor)
	{
	echo $clave." = ".$valor."<br />";
	}
	echo "<b>_REQUEST</b><br />";
	foreach($_REQUEST as $clave=>$valor)
	{
	echo $clave." = ".$valor."<br />";
	}
	echo "<b>_SESSION</b><br />";
	foreach($_SESSION as $clave=>$valor)
	{
	echo $clave." = ".$valor."<br />";
	}
	echo "<b>_SERVER</b><br />";
	foreach($_SERVER as $clave=>$valor)
	{
	echo $clave." = ".$valor."<br />";
	}
}