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As the title says, I got this warning when I upgraded my server from PHP 7.4 to PHP 8.1. To eliminate this warning, I tried the following:
- I turned off all addons and put the default wordpress theme. The warning still occurs.
- I reinstalled wordpress 6.6.1. The warning still occurs.
Everything is with the latest updates. Any idea what else I should try and why this problem occurs. Thanks in advance for your help.
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