Hi
Which MYSQL version is currently being used (started) by WAMPServer? It sounds like it has moved to using the newer version of MYSQL
So to switch it back to the old MYSQL do the following:
Left click wampmanager icon -> MYSQL -> Version -> click on 5.6.17
Wait a moment while wampserver restarts and now it will have started your old version of MYSQL so your code will be able to see the old databases and old credentials
It is then up to you if you want to backup all these old databases (only yours, not mysql's own ones) and then switch to the newer MYSQL by doing the above again and selecting the newer version, and then restoring the backed up databases to the newer version of MYSQL.
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-