Vote Getting a 400 Bad Request on testnet

Hi guys,
when i try to place a test order, i get the following error message:

400{"code":-1104,"msg":"Not all sent parameters were read; read '2' parameter(s) but was sent '5'."}

I only asked for mandatory values ​​that are also mandatory according to Binance API Documentation, namely symbol, side, type and timestamp:

$TradesUrl='https://testnet.binance.vision/api/v3/order?symbol=LTCUSDT&side=BUY&type=MARKET&quantity=1&timestamp=1659204341';
$TradesTicker = new APIREST($TradesUrl);
$CallTrades= $TradesTicker->call(array('X-MBX-APIKEY:'.$ApiKey));

Where could the problem be?

You should send as “POST” method.

I feel like there is something missing in the code, right?

This is the code for my testorder.php, which works great for GET (balances):

<?php

include('API.php');

$ServerTimeUrl='https://testnet.binance.vision/api/v3/time'; 
$ClassServerTime = new APIREST($ServerTimeUrl);
$CallServerTime = $ClassServerTime->call(array());
$DecodeCallTime= json_decode($CallServerTime);
$Time = $DecodeCallTime->serverTime;
$ApiKey = $myapi; // the Api key provided by binance
$ApiSecret= $myapikey; // the Secret key provided by binance
$Timestamp = 'timestamp='.$Time; // build timestamp type url get
$Signature = hash_hmac('SHA256',$Timestamp ,$ApiSecret); // build firm with sha256

$Symbol = 'ETHUSDT';
$Side = 'BUY';
$Type = 'MARKET';
$TimeInForce = 'GTC';
$Quantity = '10';

$TradesUrl='https://testnet.binance.vision/api/v3/order?symbol=LTCBTC&timestamp='.$Time.'&signature='.$Signature;
$TradesResponse = new APIREST($TradesUrl);
$CallTrades= $TradesResponse->call(array('X-MBX-APIKEY:'.$ApiKey));

$array = json_decode($CallTrades, true);

?>

And this is the api.php:

<?php 

$myapi = 'J4BhGpAmTyU5FQJxUEM905aKQqWoxo2uMfTgORiy9x49eqQ0P1Kdp9wX765VMkbg'; //test vision
$myapikey = 'tsXRslYK3zV47XOvqqrBlrBSkHYvIMxuUETT5Re3ak5lgsSvnJ2GwGydnwItc3LQ'; //test vision

 class APIREST
{
    private $url;
    /**
     * Constructor for the class,
     * you must send the url to initialize the class
     *
     * @return $url
     */
    public function __construct($url)
    {
        $this->url = $url;
    }
    /**
     * @param $httpheader array of headers
     * @return response
     */
    public function call($httpheader)
    {
        try
        {
            $curl = curl_init();
            if (FALSE === $curl)
                throw new Exception('Failed to initialize');
            
            curl_setopt_array($curl, array(
                CURLOPT_URL => $this->url,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_ENCODING => "",
                CURLOPT_MAXREDIRS => 10,
                CURLOPT_TIMEOUT => 60,
                CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
                CURLOPT_CUSTOMREQUEST => "GET",
                CURLOPT_HTTPHEADER => $httpheader,
            ));
            $response = curl_exec($curl);
            if (FALSE === $response)
                throw new Exception(curl_error($curl), curl_errno($curl));
            $http_status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
            if (200 != $http_status)
                throw new Exception($response, $http_status);
            curl_close($curl);
        } 
        catch(Exception $e) 
        {
            $response= $e->getCode() . $e->getMessage(); 
            echo $response;   
        }  
        return $response;      
    }  
}
?>

Could someone please help me?

Thanks