Casey Driscoll on "wp-config.php database error"

It sounds like this might be a simple syntax error in your wp-config.php file.

Look on line 28 and the lines immediately before it.

Is there are semicolon at the end of every line? How about an unfinished string quote, or open parenthesis, possibly?

For future reference, wp-config-sample.php is a template that doesn't have to be changed. You should copy it when editing it so it remains 'pure.'