adding two json fields to post_content

this is the solution:

'post_content' => $product_data['note'] . '<br>'. $product_data['note2'],

this concatenates strings ‘note’ and ‘note2’. Thanks for the hints.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)