$veri 	= array(
	'10' => array(
			'milat' => "deneme",
			'milat1' => "deneme1",
			
		),
	'20' => array(
			'milat' => "deneme",
			'milat1' => "deneme1",
			
		),	
);


$array	= array_keys($veri);

print_r($array[0]);