I want to support multi-DC with PHP SDK

I'm sorry that my English is not very good.

I would like to use the PHP SDK to support multi-DC, but I get the following error and cannot do it.

invalid_code

I understand that the cause is location differences.

For example, an EU account is authenticating to a US server.

I am trying to change the datacenter for each user, but the table schema in the documentation does not have a column to store the location, so I cannot switch datacenters.

How can I solve this?