trade

<?php
error_reporting(0);
class SteamAuth {

    /* function generateRandomString($length = 5) {
        return substr(str_shuffle("ABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, $length);
    } */
    private function RequestTrade($sessionId, $cookies, $partner, $token, $skinsget, $points){
        //$randcode = $this->generateRandomString();
        $url = 'https://steamcommunity.com/tradeoffer/new/send';
        $steamid = bcadd($partner, '76561197960265728');

            $jsonArr = json_decode($skinsget, true);
            while($item = array_shift($jsonArr))
            {
                foreach ($item as $key => $value)
                {
                    // $pointsabc=$pointsabc + $itemp[$value];
                    $skins = $skins.'{"appid":730,"contextid":"2","amount":1,"assetid":"'.$value.'"},';
                }
                $skinsglobal = rtrim($skins,',');
            }
        $data = array(
            'sessionid' => $sessionId,
            'serverid' => '1',
            'partner' => $steamid,
            'tradeoffermessage' => $points,
            'trade_offer_create_params' => '{"trade_offer_access_token": "'.$token.'"}',
            'json_tradeoffer' => '{"newversion":true,"version":2,"them":{"assets":[],"currency":[],"ready":false},"me":{"assets":['.$skinsglobal.'],"currency":[],"ready":false}}'
        );
        $c = curl_init();
        curl_setopt($c, CURLOPT_HEADER, false);
        curl_setopt($c, CURLOPT_NOBODY, false);
        curl_setopt($c, CURLOPT_URL, $url);
        curl_setopt($c, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($c, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705; .NET CLR 1.1.4322)");
        curl_setopt($c, CURLOPT_COOKIE, $cookies);
        curl_setopt($c, CURLOPT_POST, 1);
        curl_setopt($c, CURLOPT_POSTFIELDS, http_build_query($data));
        curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($c, CURLOPT_HTTPHEADER, array('Referer: https://steamcommunity.com/tradeoffer/new/?partner='.$partner.'&token='.$token));
        curl_setopt($c, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($c, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($c, CURLOPT_CUSTOMREQUEST, strtoupper('POST'));
        $response = curl_exec($c);
        curl_close($c);
        return $response;
    }
    public function MakeTrade($sessionId, $cookies, $partner, $token, $assetid, $points){
        return $this->RequestTrade($sessionId, $cookies, $partner, $token, $assetid, $points);
    }
}

?>