Codeigniter returns wrong "pagination" results - php

Question

I have this helper method which job should be to prepare pagination data in order to retrieve it on controller...
Basically this is the code which happens in helper
if (!isset($_GET['page'])) {
$_GET['page'] = 1;
}
if (!isset($_GET['per_page'])) {
$_GET['per_page'] = 5;
}
$results = $ci->$model->get('', $_GET['per_page'], $_GET['page']);
And this is my model which should return data
public function get($tableName = "", $limit = null, $start = null)
{
if ($tableName == "") {
$tableName = $this->table;
}
if ($limit != null && $start != null) {
// problem is here with limit and start which returns wrong data
$this->db->limit($limit, $start);
$query = $this->db->get($tableName);
var_dump($query->result());
die();
}
} else {
$query = $this->db->get($tableName);
}
return $query->result();
}
Problem is that data returned from model isn't correct and i can't figure out how to get properly data based on page number and items per page....
So in my case if i request data with paramas $_GET['page'] = 1 and $_GET['per_page'] = 5 it will return 5 records, but starting with record 2 till record 6. So my question is how to properly request give me let say 5 records on starting page 1 and then give me another 5 records on page 2 ETC....
If you need any additional information please let me know and i will provide. Thank you

Answer 1

The problem lies within your $start variable. You should remember that when using getting the first the 5 records, you should use an offset 0 instead 1. Counting starts from 0 remember :)
The code should be
public function get($tableName = "", $limit = null, $start = null)
{
if ($tableName == "") {
$tableName = $this->table;
}
if ($limit != null && $start != null) {
// problem is here with limit and start which returns wrong data
//$this->db->limit($limit, $start);
// use this instead
$this->db->limit($limit, ( $start - 1 ) * $limit );
$query = $this->db->get($tableName);
var_dump($query->result());
die();
}
} else {
$query = $this->db->get($tableName);
}
return $query->result();
}

Answer 2

This is working example try to do like this: https://www.formget.com/pagination-in-codeigniter/