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PDO::__construct(): Server sent charset (255) unknown to the client. Please, report to the developers #5502

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opened 2026-01-22 15:09:19 +01:00 by admin · 1 comment
admin commented 2026-01-22 15:09:19 +01:00
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Originally created by @Napas on GitHub (Apr 16, 2017).

Originally assigned to: @Ocramius on GitHub.

MySQL version: 8.0.1
PHP version: 7.1.3
Driver: pdo_mysql
charset: UTF8
dsn: "mysql:host=mysql;dbname=pets;charset=UTF8;"

Error message: PDO::__construct(): Server sent charset (255) unknown to the client. Please, report to the developers

Any ideas?

Originally created by @Napas on GitHub (Apr 16, 2017). Originally assigned to: @Ocramius on GitHub. MySQL version: `8.0.1` PHP version: `7.1.3` Driver: `pdo_mysql` charset: `UTF8` dsn: `"mysql:host=mysql;dbname=pets;charset=UTF8;"` Error message: `PDO::__construct(): Server sent charset (255) unknown to the client. Please, report to the developers` Any ideas?
admin added the Invalid label 2026-01-22 15:09:19 +01:00
admin closed this issue 2026-01-22 15:09:19 +01:00
admin commented 2026-01-22 15:09:21 +01:00
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@Ocramius commented on GitHub (Apr 16, 2017):

Closing, not an ORM bug. Please report this on https://bugs.php.net/ after some research.

@Ocramius commented on GitHub (Apr 16, 2017): Closing, not an ORM bug. Please report this on https://bugs.php.net/ after some research.
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Reference: doctrine/archived-orm#5502
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