如何在Php中使用auth0和rest api

I never used auth0 I want to implement in my rest API's, I created an account and I have client's id, secret and get my access_token. So now I want to know that how can I use in multiple API's? Here is my code for one of the API, I have to write code again and again for all API's? or there is another way?

Here is my code

curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "http://path_to_your_api/",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => array(
    "authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
  ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}