- global $wgDBuser, $wgDBserver, $wgDBpassword, $wgDBname;
- $cmd = 'mysql -u' . Shell::escape( $wgDBuser ) .
- ' -h' . Shell::escape( $wgDBserver ) .
- ' -p' . Shell::escape( $wgDBpassword, $wgDBname );
+ $config = $this->getConfig();
+ $cmd = 'mysql -u' . Shell::escape( $config->get( 'DBuser' ) ) .
+ ' -h' . Shell::escape( $config->get( 'DBserver' ) ) .
+ ' -p' . Shell::escape( $config->get( 'DBpassword' ), $config->get( 'DBname' ) );