in my controller i have an associative array in the following pattern!

Array ( [0] => Array ( [id] => 13 ) [1] => Array ( [id] => 14 ) ) 

now what i want to do is there is some data on another table where these ids are referenced as foreign keys what i want to do is iterate through this array of ids and fetch data from another table on the basis of these ids! this will be my query

 $this->db->select("path");
        $this->db->from('main_data');
        $this->db->where("f_key",$id); //this is the id i want to take from array i written above
        $query = $this->db->get();
        return $query->result_array();