Issue with Strava API - php

Question

I am trying to get a list of my activities using cURL I can get the list of my clubs ok. Can't seem to figure out what I am doing wrong
I am having an issue when using the request. $ http GET "https://www.strava.com/api/v3/activities/{id}?include_all_efforts=" "Authorization: Bearer [[token]]"
I cam getting an error
string(95) "{"message":"Record Not Found","errors":
[{"resource":"Activity","field":"id","code":"invalid"}]}"
**I have tried the following**
$num = "2149016538";
$int = (int)$num;
// $url = 'https://www.strava.com/api/v3/athlete/clubs';
$url = 'https://www.strava.com/api/v3/activities/{'.$int.'}?include_all_efforts=true';
**No success**
**I have also tried this**
$num = "2149016538";
$int = (int)$num;
// $url = 'https://www.strava.com/api/v3/athlete/clubs';
$url = 'https://www.strava.com/api/v3/activities/?id='.$int.'?include_all_efforts=true';
$authorization = "Authorization: Bearer 23232323";
$num = "2149016538";
$int = (int)$num;
// $url = 'https://www.strava.com/api/v3/athlete/clubs';
$url = 'https://www.strava.com/api/v3/activities/{'.$int.'}?include_all_efforts=true';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
// curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1);
// curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, TRUE);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json' , $authorization ));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// curl_setopt($ch, CURLOPT_POSTFIELDS,$post);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
$result = curl_exec($ch);
var_dump($result);
curl_close($ch);
json_decode($result);