将Array推送到另一个Array PHP中

Question

I would like to push this:

"serialNumber" => $serial,

Inside product array of $postArray and

"note" => array(
                    "text" => $note
                ),

before reservationDate Inside $postArray.

$postArray = array(
                "reservationDate" => $timeData,
                "emailLanguageCode" => "it_it",
                "shipToCode" => $_POST['ship'],
                "customer" => array(
                    "firstName" => $_POST['firstName'],
                    "lastName" => $_POST['lastName'],
                    "emailId" => $_POST['emailId'],
                    "phoneNumber" => $_POST['phoneNumber'],
                    "address" => array(
                        "addressLine1" => $_POST['addressLine1'],
                        "city" => $_POST['city'],
                        "state" => $_POST['state'],
                        "country" => $_POST['country'],
                        "postalCode" => $_POST['postalCode']
                    )
                ),
                "product" => array(
                    "productCode" => $_POST['productCode'],
                    "issueReported" => $_POST['issueReported']
                )
            );

And result that I would like:

$postArray = array(
                "note" => array(
                    "text" => $note
                ),
                "reservationDate" => $timeData,
                "emailLanguageCode" => "it_it",
                "shipToCode" => $_POST['ship'],
                "customer" => array(
                    "firstName" => $_POST['firstName'],
                    "lastName" => $_POST['lastName'],
                    "emailId" => $_POST['emailId'],
                    "phoneNumber" => $_POST['phoneNumber'],
                    "address" => array(
                        "addressLine1" => $_POST['addressLine1'],
                        "city" => $_POST['city'],
                        "state" => $_POST['state'],
                        "country" => $_POST['country'],
                        "postalCode" => $_POST['postalCode']
                    )
                ),
                "product" => array(
                    "serialNumber" => $serial,
                    "productCode" => $_POST['productCode'],
                    "issueReported" => $_POST['issueReported']
                )
            );

I tried this:

array_push($postArray["product"][],$numeroSerie);

Please help.

Answer 1

Just simply do this

$postArray['product']['serialNumber'] = $serial;