WP Get Results from DB in Array, and Search it for a Value

$fivesdrafts = $wpdb->get_results(
    " SELECT `student_id` FROM `fu1sZ_arko_students` WHERE `canexam1` = 1 "
    );

    $out = array();   //putting outside of the loop
    foreach ( $fivesdrafts as $fivesdraft )
        {
        $jor = $fivesdraft->student_id;
        array_push($out, $jor);
        }
        //$tow = implode(',', $out);
        //echo $tow;

        // $people = array("Peter", "Joe", "Glenn", "Cleveland");
        if (in_array("6", $out)) {
        echo " <br/><br/>Match found";
        }
        else {
        echo " <br/><br/>Match not found";
        }