Set parameters if its ajax request?

I have this query that i call with ajax request:

   $query->whereHas($key,function($q) use($option){
                       $q->whereIn('name', $option);


});

In option i get data like this:

array:2 [▼
  0 => "Selling"
  1 => "Rent"
]

Now on infinite scroll im calling same this query with ajax

  path: function(pindex) {
          console.log('RESULT PARAMS',resultUrlParams);
            return "/search/filter?"+ resultUrlParams +"&page=" + pindex;
        }

And my url is :

publishing_types=Selling,Rent&priceFrom=0&priceTo=300000&areaFrom=0&areaTo=300000

My question is how can i handle now this publishing_types to work with query above, because now im getting an error.Its array on first and now its looks like this. Any suggesion?

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