If you see error messages saying "Your PHP installation appears to be missing the MySQL extension which is required by WordPress", this is almost always caused by uploading a "php.ini" file that contains incorrect MySQL extension commands.

For example, this will happen if you upload a "php.ini" file that's intended for Windows servers instead of Linux servers.

You should simply delete the custom "php.ini" file you uploaded, and everything will work properly. If you need to change individual "php.ini" settings, see our PHP page.

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