Cirital error when changing to php 8.x

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Last updated by dominikS-33 1 week, 1 day ago.

Author	Posts
July 15, 2025 at 10:54 am #17237391
dominikS-33	Background of the issue: I am trying to update my PHP version to 8.0 or higher, as recommended by WordPress, but encounter issues when changing the language on my website from English to German. Symptoms: A critical error occurs when I change the language on my website from English to German after updating PHP to version 8.0 or higher. The error disappears when reverting to PHP 7.x. Questions: Why does a critical error occur when changing the language after updating PHP to 8.x? How can I resolve the critical error related to PHP version changes?

Author

Posts

July 15, 2025 at 10:54 am #17237391

Background of the issue:
I am trying to update my PHP version to 8.0 or higher, as recommended by WordPress, but encounter issues when changing the language on my website from English to German.

Symptoms:
A critical error occurs when I change the language on my website from English to German after updating PHP to version 8.0 or higher. The error disappears when reverting to PHP 7.x.

Questions:
Why does a critical error occur when changing the language after updating PHP to 8.x?
How can I resolve the critical error related to PHP version changes?