get count of all data codeigniter code example

Example 1: row count in codeigniter

$this->db->where('EmpID >=', 5);
$query = $this->db->get('Employees');
echo $query->num_rows();

// Outputs, 4

Example 2: get result count codeigniter

public function record_count() {
   return $this->db->count_all("tablename");
}