“Matomo requires either the mysqli extension or both the PDO and pdo_mysql extensions.”
" On a Windows server you can add the following lines to your php.ini:
After making this change, restart your web server."
I did that and it still fails.
NOTE: I noticed the file “php_pdo.dll” does not exist in my php7.4.9
“The mbstring extension is required to handle multibyte characters in the User interface and API responses. Also, please check that mbstring.func_overload is set to “0” in php.ini.”
I confirmed the the setting “mbstring.func_overload is set to “0” in php.ini” is set to 0.