prepared statement method.. confused

Question

I don\'t know what\'s missing or why it isn\'t displaying data. My code is working if I\'m not using prepared statements. When I used prepared statements, it seems that code

Answer 1

your od_id type in DB is string or integer? if a integer

public function selectUserInfo($id){

    $stmt = $this->con->prepare("SELECT * FROM users WHERE os_id = ?");
    $stmt->bind_param("i", $id);//use 'i' instead of 's'

    if($stmt->execute() == FALSE){
        trigger_error($stmt->error, E_USER_ERROR);
    }else{
        $data = array();
        while($row = $stmt->fetch()){
            $data[] = $row;
        }
        return $data;
    }

}