Having trouble with a foreach loop

Hi there,

I am trying to figure out why I am getting either undefined index error or non-object error.

PHP Code:

private function checkForBot(){
       
       $keywords = $this->Content_model->get_results('analytics_bots');
       $agent = strtolower($_SERVER['HTTP_USER_AGENT']);
       foreach ($keywords->keyword as $key) {
           if(strpos($agent, $key) !== false){
           return true;
           }       
       }
       return false;
    } 


if I use $keywords->keyword I am getting the non-object and if I use $keywords['keyword']I get the index error.

I just cannot figure out why its not accepting the array in.

Thanks,

Doomie