How to send an array of std class objects to mysql with php?

Question

PHP

I use mysqli, all data is sent except for one array, I don’t understand what the problem is, the request looks like this:

$stmt = $link->prepare("INSERT INTO movies (ID,,..actors) VALUES (?, ... ?)");
$stmt->bind_param("s...s", $ID ... $actors_cast);
$actors_cast=serialize($actors->cast);//попробовал и с json_encode,все равно одно и то же или ошибку выдает или на БД появляется вместо массива в виде строки запись Array и все
$stmt->execute();
массив выглядит вот так 
array(53) {
  [0]=>
  object(stdClass)#86 (8) {
    ["cast_id"]=>
    int(0)
    ["character"]=>...

For the 3rd day I can not solve the problem (I work with php and mysql for the first time)
Please tell me what to do ???

Answer 1

Judging by the code, it should work, except for the fact that for writing such arrays to the database you have to kick your toes in army boots, so that later even the edge of such a thought does not arise.
> Please tell me what to do???
Describe your problems in clear Russian.
Only Harry Potter is "sent" to Hogwarts, and something is written to the database.
So you need to clearly write what exactly ends up in the database and how you found out about it.