How to fix INSERT INTO problem?

Question

PHP

I do INSERT in a database. Connected everything.
Request

$this->dbh->query("INSERT INTO orders (name, phone, city, region, secession, weight, cost, status, np_status, np_id, created_at) VALUES ('".$this->post['name']."', '".$this->post['phone']."', '".$this->post['city']."', '".$this->post['region']."', '".$this->post['npNumb']."', '".$this->post['weight']."', '".$this->post['cost']."', '$this->status', '$statusArr', '$this->ttn', '$this->created')");

Variables checked, they are not empty. The fields from the database are also 100% correct. BUT the data is not added to the database.
Below on the line I do SELECT from this DB from the same table - normally I receive the data. But I can't add. What can be wrong???
I will be glad for any help!

Answer 1

We read phpfaq.ru/pdo
Turn on error output for PDO
Change this horror with variables right in the request code to prepared expressions