$db = new mysqli('localhost','root','','dbname');
$db->query("SET NAMES utf8");
 
$ismFamiliya = $db->quer("SELECT `ismfamilya` from `jadval_nomi`")or die($db->error);
while($r = $ismFamiliya->fetch_array()){
$t=explode(' ',$r['ismfamilya']);
echo $t[0]." ".substr($t[1],0,1).".".substr($t[2],0,1);
}