Why is it accepted as an array and not as an object?

Question

symfony

I pass this string to the controller
{"data":[{"n1":10,"n10":100,"n2":20,"n3":30,"n4":40,"n5":50,"n6 ":60,"n7":70,"n8":80,"n9":90,"s1":"aaa","s2":"bbb"},{"n1":101,"n10": 1001,"n2":201,"n3":301,"n4":401,"n5":501,"n6":601,"n7":701,"n8":801,"n9":901, "s1":"ccc","s2":"ddd"},{"n1":102,"n10":100,"n2":202,"n3":30,"n4":402,"n5 ":50,"n6":60,"n7":70,"n8":80,"n9":90,"s1":"eee","s2":"fff"}],"baseclass": "Custom","classlibrary":"claass","comment":"","controlcount":0,"height":17,"helpcontextid":0,"left":0,"name":"Myarray", "nsize":3,"parentclass":"Custom","picture":"","tag":"","top":0,"whatsthishelpid":-1,"width":100}
The controller itselfwidth":100} The controller itselfwidth":100} The controller itself

/**
   * @param ParamFetcher $paramFetcher Paramfetcher
     *
     * @RequestParam(name="data", nullable=false, strict=true, description="Data.", array=true)
     *
     * @return View
     */
    public function postDocsAction(ParamFetcher $paramFetcher)
      $data       = $paramFetcher->get('data');
        $logger     = $this->get('logger');
        $i=0;
        foreach ($data as $key => $d) {
            $i++;
            $logger->info($key.'=='.gettype($d));
        }

gettype($d) is an array, not an object

Answer 1

I am not an expert in Symfony, of course, but judging by the array=true in DocBlock, it is indicated that json_decode should return an array, not an object.

Answer 2

What did you do to make it an object?
The array goes pair + value. PHP can convert data types.
But an array is an array, and an object is an object. In the loop, you only iterate over the received.
You either create an object and fill it with the resulting array. Or a more elegant solution will be prompted to you.