DP – filtr
$meta_query = array( 'relation' => 'AND', array( 'key' => 'urceni_kurzu', 'value' => '$urceni_kurzu', 'compare' => 'IN', 'type' => 'CHAR', ), array( 'key' => 'clenstvi_kurz', 'value' => '$clenstvi_kurz', 'compare' => 'IN', 'type' => 'CHAR', ), array( 'key' => 'typ_kurzu', 'value' => '$typ_kurzu', 'compare' => 'IN', 'type' => 'CHAR', ), );