actually i can do it in a different way so are sure to post them here because total 12 pages nearly 800 rows included and trying for a month.it is better not to send the codes for me.
but a part
$username = $_POST["username"];
$password = $_POST["password"];
and then i use 3 arrays to get an array adrees
$sql = 'insert into url (username, password, adress1, adress2, adress3, adress4) values ("'.$username.'", "'.$password.'", "'.$adress[0].'", "'.$adress[1].'", "'.$adress[2].'", "'.$adress[3].'")';
i can get the values of username and password if i use them alone.if i add other values i have got only a blank instead of them