get result of query step by step codeigniter - php

Question

I need to do something like this:
if (isset($account)) {
$this->db->where('account', $account);
}
if (isset($subject)) {
$this->db->where('subject', $subject);
}
if (isset($contact)) {
$this->db->where('_from', $contact);
}
//here i need to get result
$resul1 = $this->db->get('table');
$limit = 5; $offset =10;
$this->db->limit($limit, $offset);
//here i need to get result with offset and limit
$result2 = $this->db->get('table');
$result1 should execute this query
SELECT *
FROM `table`
WHERE `account` = 'some account'
AND `subject` = 'some subject'
AND `_from` = 'name'
and $result2 should execute this query ($query1 + offset and limit):
SELECT *
FROM `table`
WHERE `account` = 'some account'
AND `subject` = 'some subject'
AND `_from` = 'name'
LIMIT 10, 5
but $result2 execute as a separate query: select * FROM table LIMIT10, 5
is it possible to achieve this or I need to start the query from the begining?

Answer 1

LIMIT Without limit() Function
result = $this->db->get('table', 0, $offset);
Or using manual select:
$query = "SELECT *, COUNT(account) AS total FROM `table` WHERE `account` = ? AND `subject` = ? AND `_from` = ? LIMIT 0, ?";
$result = $this->db->query($query, array($account, $subject, $contact, $offset));