Hi,
> The port for mysql in my system is 3308
Because you disabled MariaDB that was installed and you did it without reading the document that was recommended to read at the end of the installation of Wampserver.
You are lucky, you can still read it :
Right-click Wampmanager icon -> Help -> MariaDB - MySQL
To save you from reading fatigue
Right-Click -> Tools -> Use a port other than 3308 and choose 3306
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Documentation PHP -
Documentation MySQL -
Wampserver install files & addons