Unable to check PDO::ATTR_STRINGIFY_FETCHES configuration

[janedbal]

Description

The following code:

<?php
$pdo = new PDO('mysql:host=mysql;port=3306', 'root', 'secret');
var_dump(
    $pdo->getAttribute(PDO::ATTR_STRINGIFY_FETCHES)
);

Resulted in this output:

Fatal error: Uncaught PDOException: SQLSTATE[IM001]: Driver does not support this function: driver does not support that attribute in /app/pdo.php on line 3

But I expected this output instead:

int(0);

It seems like I cannot verify how PDO is configured regarding this option. When $pdo->setAttribute(PDO::ATTR_STRINGIFY_FETCHES, true) is used, true is returned and the behaviour changes. This behaviour applies for at least mysql, pgsql and sqlite.

Full dockerized replication repository: https://github.com/janedbal/php-pdo-get-attribute-bug

PHP Version

PHP 8.3.0

Operating System

No response

[SakiTakamachi]

This is a known issue. In #12793 I made a fix for this issue on master. I targeted the master branch for changes because there were some other existing behavior changes.

@Girgias
At least regarding the part of getting PDO::ATTR_STRINGIFY_FETCHES with getAttribute(), I don't think it will cause a BC break even if we backport it. What do you think?

[janedbal]

Thx, I'd love to see this backported!

Currently I'm working on phpstan-doctrine feature that attempts to autodetect stringification behaviour and this is blocking issue for me.

[SakiTakamachi]

I have created the backport PR to 8.2 for the time being.

#12970

[janedbal]

Thanks!