$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);

}