how to check an array with cart price rule ID magento 2

Question

I am trying to get Cart_Price_Rule.

   public function test()
{
    $ruleArray = $this->adventCollectionFactory->create()->getData();
    $ruleArray = array_column($ruleArray,'promo_rule_id');
    return implode($ruleArray);
}

This allows me to see the 2 rule id i have pased in a collection

But how would I check it with rule repository individually My results are 1 and 2 and I have a cart price rule which has the ID of 1 and 2 I am trying to grab the description and code in phtml

\Magento\SalesRule\Model\RuleRepository $ruleRepository 
$rule = $this->ruleRepository->getById($this->test()); //how do i pass it individually the id's

$rule->getDescription();
$rule->getCondition();

Answer 1

    public function test(){

    $ruleArray = $this->adventCollectionFactory->create()->getData();
    $ruleArray = array_column($ruleArray,'promo_rule_id');
    $array=  implode($ruleArray);


    print_r($array);

}

I get 1 and 2 - which is correct