N. 1

array(0) {
}
array(4) {
  ["post_type"]=>
  string(8) "contract"
  ["numberposts"]=>
  int(-1)
  ["suppress_filters"]=>
  bool(false)
  ["meta_query"]=>
  array(3) {
    ["relation"]=>
    string(2) "OR"
    [0]=>
    array(3) {
      ["key"]=>
      string(27) "prodotti_x_product_carousel"
      ["value"]=>
      string(6) ""5564""
      ["compare"]=>
      string(4) "LIKE"
    }
    [1]=>
    array(3) {
      ["key"]=>
      string(27) "prodotti_x_product_carousel"
      ["value"]=>
      string(7) "i:5564;"
      ["compare"]=>
      string(4) "LIKE"
    }
  }
}