1.x DB Entries in wp-config.php cause PHP MySQL connection errors in 2.x

[bald_technologist]

I’ve been running into problems ever since I upgraded WordPress to 2.x (not sure if it was 2.0 or 2.1) with new posts. The first time a new post was was loaded into the browser, the server kicked out this error:

PHP Warning: mysql_affected_rows() [<a href='function.mysql-affected-rows'>function.mysql-affected-rows</a>]: A link to the server could not be established in /Users/alex/Dev/SilverSpider/site/wp-includes/wp-db.php on line 183

My old wp-config.php contained some lines that are not included in the 2.x wp-config-sample.php:

$server = DB_HOST;
$loginsql = DB_USER;
$passsql = DB_PASSWORD;
$base = DB_NAME;

As the upgrade instructions specifically state that one shouldn't delete wp-config.php, nor do they provide any direction on modifying it accordingly, this could be a problem on a lot of sites.

I spoke too soon, this didn't resolve the problem at all. Sorry for the invalid entry.