Codeigniter: Count columns with value for user
For Row Counts
$this->db->where('user_id', $id);$this->db->from('myTable');$cnt = $this->db->count_all_results();
For more details please see the CodeIgniter Documentation on ActiveRecord
For Colunm Counts
$query = $this->db->where('user_id', $id)->get('myTable');$cnt = $query->num_fields();
For more details please see the CodeIgniter Documentation on Database Query Results