python,java,javascript,php,mysql,Mysql datetime now, which displays normally in a database, but in a different format in web pages
![Database collation. French accents. Polish Lettering - Installation and Configuration - TNG Community Database collation. French accents. Polish Lettering - Installation and Configuration - TNG Community](https://tng.community/uploads/monthly_2018_03/myPhpAdmin_2.jpg.8f8f1ffad9e1c1ee1dacbf19e2bd037e.jpg)
Database collation. French accents. Polish Lettering - Installation and Configuration - TNG Community
![character encoding - How to convert an entire MySQL database characterset and collation to UTF-8? - Stack Overflow character encoding - How to convert an entire MySQL database characterset and collation to UTF-8? - Stack Overflow](https://i.stack.imgur.com/vJTVe.png)
character encoding - How to convert an entire MySQL database characterset and collation to UTF-8? - Stack Overflow
![Moodle in English: Error reading from database - COLLATION 'utf8mb4_bin' is not valid for CHARACTER SET 'utf8' SELECT * FROM mdl_user WHERE LOWER(username) COLLATE utf8mb4_bin .. Moodle in English: Error reading from database - COLLATION 'utf8mb4_bin' is not valid for CHARACTER SET 'utf8' SELECT * FROM mdl_user WHERE LOWER(username) COLLATE utf8mb4_bin ..](https://moodle.org/pluginfile.php/143/mod_forum/attachment/1611506/descarga.png?forcedownload=1)