array(9) {
  ["pa_materiales"]=>
  object(WC_Product_Attribute)#39300 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(1)
      ["name"]=>
      string(13) "pa_materiales"
      ["options"]=>
      array(1) {
        [0]=>
        int(83)
      }
      ["position"]=>
      int(0)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["pa_color"]=>
  object(WC_Product_Attribute)#39299 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(3)
      ["name"]=>
      string(8) "pa_color"
      ["options"]=>
      array(1) {
        [0]=>
        int(78)
      }
      ["position"]=>
      int(1)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["pa_marca"]=>
  object(WC_Product_Attribute)#39298 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(4)
      ["name"]=>
      string(8) "pa_marca"
      ["options"]=>
      array(1) {
        [0]=>
        int(97)
      }
      ["position"]=>
      int(2)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["tamano-base-diametro-alto"]=>
  object(WC_Product_Attribute)#39297 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(0)
      ["name"]=>
      string(31) "Tamaño Base (Diámetro / Alto)"
      ["options"]=>
      array(1) {
        [0]=>
        string(12) "22.00 / 1.80"
      }
      ["position"]=>
      int(3)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["peso-base-gr"]=>
  object(WC_Product_Attribute)#39296 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(0)
      ["name"]=>
      string(14) "Peso Base (gr)"
      ["options"]=>
      array(1) {
        [0]=>
        string(5) "29.80"
      }
      ["position"]=>
      int(4)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["tamano-domo-diametro-alto"]=>
  object(WC_Product_Attribute)#39295 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(0)
      ["name"]=>
      string(31) "Tamaño Domo (Diámetro / Alto)"
      ["options"]=>
      array(1) {
        [0]=>
        string(13) "26.74 / 12.25"
      }
      ["position"]=>
      int(5)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["peso-domo-gr"]=>
  object(WC_Product_Attribute)#39294 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(0)
      ["name"]=>
      string(14) "Peso Domo (gr)"
      ["options"]=>
      array(1) {
        [0]=>
        string(5) "43.40"
      }
      ["position"]=>
      int(6)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["pa_temperatura-recomenda"]=>
  object(WC_Product_Attribute)#39226 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(7)
      ["name"]=>
      string(24) "pa_temperatura-recomenda"
      ["options"]=>
      array(1) {
        [0]=>
        int(92)
      }
      ["position"]=>
      int(7)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
  ["pa_codigo-relacionados-forma"]=>
  object(WC_Product_Attribute)#39259 (1) {
    ["data":protected]=>
    array(6) {
      ["id"]=>
      int(2)
      ["name"]=>
      string(28) "pa_codigo-relacionados-forma"
      ["options"]=>
      array(1) {
        [0]=>
        int(99)
      }
      ["position"]=>
      int(8)
      ["visible"]=>
      bool(true)
      ["variation"]=>
      bool(true)
    }
  }
}

-----NULL

xxxxstring(13) "pa_materiales" bool(true)

xxxxstring(8) "pa_color" bool(true)

xxxxstring(8) "pa_marca" bool(true)

xxxxstring(31) "Tamaño Base (Diámetro / Alto)" bool(false)

xxxxstring(14) "Peso Base (gr)" bool(false)

xxxxstring(31) "Tamaño Domo (Diámetro / Alto)" bool(false)

xxxxstring(14) "Peso Domo (gr)" bool(false)

xxxxstring(24) "pa_temperatura-recomenda" bool(true)

xxxxstring(28) "pa_codigo-relacionados-forma" bool(true)