Remove int return type from FlattenException::getCode

[wucdbm]

Q	A
Branch?	4.4
Bug fix?	yes
New feature?	no
Deprecations?	no
Tickets	-
License	MIT
Doc PR	-

Heya,

So my project died with Return value of Symfony\Component\ErrorHandler\Exception\FlattenException::getCode() must be of the type int, string returned symfony error page. Quite unexpected.

Turns out it's a Doctrine\DBAL\Driver\PDOException with code 42S02 and message SQLSTATE[42S02]: Base table or view not found: 1146 Table 'some_db.some_table' doesn't exist.

This is because I use the FlattenException class to serialize errors and store elsewhere, just more convenient to quickly check for any errors. I guess noone has stumbled upon a PDOException / FlattenException::getCode before.

https://www.php.net/manual/en/throwable.getcode.php

Returns the exception code as integer in Exception but possibly as other type in Exception descendants (for example as string in PDOException).

[Tobion]

please add a unit test testing setCode and getCode can accept string.

[fabpot]

Thank you @wucdbm.