Step 2 with PHP

[TuffyMouse]

Hallo,
i'am using php but i don't know how to send the data like _csrf, identiry, ...
Here is piece of code:

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://auth.tesla.com/oauth2/v3/authorize");
$headers = [
   'Content-Type: application/x-www-form-urlencoded',
   'Authorization: Bearer',
   'User-Agent: Mozilla/5.0 (Linux; Android 9.0.0; VS985 4G Build/LRX21Y; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36',
   'X-Tesla-User-Agent: TeslaApp/3.10.8-421/adff2e065/android/9.0.0'
   ];
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_COOKIE, '"tesla-auth_sid=' . $cookies['tesla-auth_sid'] . '"');
$params = array(
   "client_id" => "ownerapi",
   "code_challenge" => $code_challenge,
   "code_challenge_method" => "S256",
   "redirect_uri" => "https://auth.tesla.com/void/callback",
   "response_type" => "code",
   "scope" => "openid email offline_access",
   "state" => getRandomString(16),
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_POST, TRUE);

$resp = curl_exec($ch);
curl_close($ch);

Suggestions are most welcome!

TuffyMouse