Hi,
> I changed my.ini of wamp server,
It's not enough!
Change the Apache and MySQL ports is a basic option of Wampserver.
- Right-Clic Wampmanager tray icon -> Tools -> Use a port other than 3306
Port numbers will be changed EVERYWHERE there is need them to be.
However, for this to work, you need the other MySQL server is stopped before launching Wampserver which MUST be operational (green icon) BEFORE changing the port number.
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Documentation Apache -
Documentation PHP -
Documentation MySQL -
Wampserver install files & addons