I'm using codeigniter
;
I would like to get last N
rows from my table.
In my query I want to get last 200 rows:
$this->m_general->select('count(*)');
$this->m_general->from('pm');
$result_count_query = $this->m_general->get();
$count_query = $result_count_query->num_rows();
$data['all'] = $this->m_general->get('pm', array( 'admin_delete'=>0 ) , $count_query-200,$count_query, array('admin_seen'=>'asc' , 'id'=>'desc') );
but it returns nothing.
where is my wrong ?
updated
below query not worked fine and it returns all records :
$data['all'] = $this->m_general->get('pm', array( 'admin_delete'=>0 ) ,200, array('admin_seen'=>'asc' , 'id'=>'desc') );
Check out the API
https://ellislab.com/codeigniter/user-guide/database/active_record.html
Looks like you can't do this with the get
method. Build your query according to the API.
$this->m_general->limit(200);
$this->m_general->order_by("admin_seen", "asc");
$this->m_general->order_by("id", "desc");
$data['all'] =
$this->m_general->get('pm', array( 'admin_delete'=>0 ));
This Solve the Problem
$query = $this->db->query("SELECT * FROM pm WHERE admin_delete= 0 AND admin_seen=0 ORDER BY id DESC LIMIT 200");
$result = $query->result_array();
$count = count($result);
if(empty($count))
{
echo 'array is empty';
}
else{
return $result;
}
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.