How to use priceoverride ?

[aep saepudin]

I am using  addOrder API, but the total still zero, how to use proceoverride properly?

 

Here my code,

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://---/includes/api.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
    http_build_query(
        array(
            "action"        => "AddOrder",
            "identifier"    => "---",
            "secret"        => "---",
            "username"      => "---",
            "password"      => "---",
            "clientid"      => 91,
            "paymentmethod" => "mandiriva",
            "priceoverride" => array(floatval(1000000)),
            "serviceid"     => 1496,
            "addonid"       => 24,
            "responsetype"  => "json",
        )
    )
);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);

echo $response ;

curl_close($ch);

thanks.