$blog_title = get_bloginfo( 'name' );
        $table_name = '';
        if ( $blog_title == 'Driver Easy' ) {
            $table_name = 'show_gg_advertising';
        }
        else if ( $blog_title == 'Driver Easy Deutschland' ) {
            $table_name = 'show_2_gg_advertising';
        }            

 

可以通过 get_bloginfo('name') 区分不同站点