Save value in variable after curl

Good afternoon. I'm trying to get a value from a page (.asp) after giving cURL in it.

My code:

curl_setopt_array($curl, array(
  CURLOPT_URL => "https://www.minhaapi.com.br/script_session.asp?file=api.asp",
CURLOPT_RETURNTRANSFER => true,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_SSL_VERIFYPEER => false,
  CURLOPT_SSL_VERIFYHOST => false,
  CURLOPT_CUSTOMREQUEST => "GET",

));

$token = curl_exec($curl);

Response cURL:

session={id:7444326,hash:'{2B71B3FB-8FAE-4C7E-BFCF-C9F0EE71D3E3}',customer:{id:8901,name:'cliente1',email:'[email protected]',groupid:0},cart: ...

Since the value of the first id, and the hash changes to each curl, how can I get these two values and save them in a variable? I have already tried the getStr function and did not succeed. Thanks.

Unsuccessful attempt:

curl_setopt_array($curl, array(
  CURLOPT_URL => "https://www.minhaapi.com.br/script_session.asp?file=api.asp",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_SSL_VERIFYPEER => false,
  CURLOPT_SSL_VERIFYHOST => false,
  CURLOPT_CUSTOMREQUEST => "GET",

));

$token = curl_exec($curl);

$retorno = ltrim($retorno, 'session={');
$retorno = rtrim($retorno, '};');
$retorno = json_decode($token, true);


$id = $retorno['id'];
$hash = $retorno['hash'];
$customer = $retorno['customer'];
echo $hash;