Installation MySQL Error

I was going to install the Omeka on XP.
But I have faced the error.
The error were following as :
"Omeka Database Error

The Mysqli extension is required for this adapter but the extension is not loaded.

Confirm that the information in your db.ini file is correct."

I hope that someone help to install successfully.

Thank you.

You don't have the Mysqli PHP extension installed. Omeka requires mysqli.

Depending on how you have your server set up, you need to enable or install mysqli.

Hi, John.

Thanks for your reply.
I am using xampp server. And I have already enabled the mysql server.
And I have removed the comman in php.ini file.
Then the error occured.

Make sure you uncommented or added this line to your php.ini:

extension= php_mysqli.dll

Then restart XAMPP, and it should be enabled.

Still error occured.