$id = $this->db->insert_id();
function add_post($post_data){
$this->db->insert('posts', $post_data);
$insert_id = $this->db->insert_id();
return $insert_id;
}
$this->db->insert('posts', $post_data);
$insert_id = $this->db->insert_id();
return $insert_id;
$last_inserted_id = $this->db->insert_id();
$db = db_connect();
$query = $db->query("SELECT * FROM users ORDER BY id DESC LIMIT 1");
$result = $query->getRow();