Generate Datatable Input

public function generate_datatables_input($filters = array(), $column_search = array(), $column_order = array(), $order = array(), $pagination = false){

      if(isset($filters["search"]["value"]) && !empty($filters["search"]["value"])){
        // remove null for global search
        $tmp = $column_search;
        $column_search = array();
        foreach ($tmp as $i => $v) {
          if($v == null || empty($v)) continue;
          $column_search[] = $v;
        }

        $i=0;
        foreach ($column_search as $item) {
          if($i == 0){
            $this->db->group_start();
            $this->db->like($item, $filters["search"]["value"]);
          } else{
            $this->db->or_like($item, $filters["search"]["value"]);
          }

          if(count($column_search) - 1 == $i){
            $this->db->group_end();
          }
          $i++;
        }
      }

      $i=0;
      foreach ($column_search as $index => $item) {
        if(isset($filters['columns'][$index])){
          if(!empty($filters["columns"][$index]['search']['value'])){
            $value = $filters["columns"][$index]['search']['value'];
            $this->db->like($item, trim($value));
          }
        }

        $i++;
      }

      if(isset($filters["order"])){
        $this->db->order_by($column_order[$filters["order"][0]["column"]], $filters["order"][0]["dir"]);
      } else if(isset ($order)){
        $this->db->order_by(key($order), $order[key($order)]);
      }

      if($pagination){
        $start  = isset($filters["start"]) ? (int) $filters["start"] : 0;
        $length = isset($filters["length"]) ? (int) $filters["length"] : -1;

        if($length != -1) $this->db->limit($length, $start);
      }
    }