In App Purchase Verification PHP Code

inapp.php

<?php

function verifyPurchase($transactionid, $productid, $uuid, $sandbox=false) {


       $body = @file_get_contents('php://input');

            //encode receipt
            $body = base64_encode($body);
            $receipt = json_encode(array("receipt-data" => $body));
            
            // NOTE: use "buy" vs "sandbox" in production.
            if ($sandbox) {
                $url = "https://sandbox.itunes.apple.com/verifyReceipt";
            } else {
                $url = "https://buy.itunes.apple.com/verifyReceipt";
            }
            
            //send receipt to Apple
            $curl_handle = curl_init();
            curl_setopt($curl_handle,CURLOPT_URL,$url);
            curl_setopt($curl_handle,CURLOPT_CONNECTTIMEOUT,2);
            curl_setopt($curl_handle,CURLOPT_RETURNTRANSFER,1);
            curl_setopt($curl_handle, CURLOPT_POSTFIELDS,$receipt);
            $buffer = curl_exec($curl_handle);
            curl_close($curl_handle);
        
            //getting answer from Apple
            $object = json_decode($buffer);
            $array = json_decode($buffer,true);
            $status = $object->{'status'};
            
            if ($status == 0 && //additional sanity checks) {
                //receipt is OK

				$userslug = $uuid;
				$tid = $transactionid;
		
				echo "{\"status\" : 0 }
    } else {die("error");}

}


?>

Why $object->{'status'} rather than $object->status?

Looks like nonfinished code? :-P