insert value array in database and next get(each) part of it?

I use of codeigniter. how can insert several value (array) <input name="ok[]"> in database and get they of database. (what is the best way?)

type rows in database is "VARCHAR" and "utf-8".

<input type="text" name="ok[]">

Values: (This is just one exa开发者_如何学运维mple of what I want)

ok[1] => hi, how are you?, 5426, assd, 54568
ok[2] => what, your name?, 548568a, 684a45ade
ok[3] => asdwhasdat, fine, 85as454se, 4e748sd
ok[3] => 85as454se, George, asdwhasdat, 4e748sd
Etc. ....

Now after it, i want inputs ok[1], ok[2], ok[3] together insert in a row (column) on database.

NEXT: I want get (the second part) they of database and each they in foreach as:

how are you?

fine

your name?

George

how is it?

---

$inserts = array();

foreach ($_REQUEST['ok'] as $key => $val)
{
   $parts = explode(',', $val);
   $inserts[] = "('" . mysql_real_escape_string($parts[1]) . "')";
}

$inserts = implode(',', $inserts);
$sql = "INSERT INTO yourtable (fieldname) VALUES $inserts;";
$result = mysql_query($sql) or die(mysql_error());