How to Clear CloudFlare Caches of Multiple URLs using PHP Script with CloudFlare API?

function getZones($key, $email, $page = 1, $per_page = 100) {
  $cmd = 'curl -s -X GET "https://api.cloudflare.com/client/v4/zones?'.
        'status=active&page=$page&per_page=$per_page&order=status&direction=desc&match=all" -H "X-Auth-Email: '.$email.
        '" -H "X-Auth-Key: '.$key.
        '" -H "Content-Type: application/json"';
  return json_decode(shell_exec($cmd));
}  

// $arr = array of URLs
// $key = APP_KEY
// $email = account email
// $data = the result of getZones($key, $email)
function removeCache($arr, $key, $email, $data) {
  if (!$data) {
      throw new Exception("data null");
  }
  $ok = $data->success ?? false;
  if (!$ok) {
      throw new Exception("not success" . ($data->errors ?? '') . ($data->messages ?? ''));
  }   
  $result = $data->result ?? null;
  if (!$result) {
      throw new Exception("result null");
  }  
  $zones = array();          
  foreach ($arr as $url) {
      $domain = parse_url($url)['host'];
      $id = '';
      // the zone id should be cached  
      if (array_key_exists($domain, $zones)) {
          $id = $zones[$domain];
      } else {
        foreach ($result as $tmp) {
          if ($tmp->name == $domain) {
            $id = $tmp->id;
            $zones[$domain] = $id; 
          }
        }
      } 
      if ($id == '') {
        throw new Exception("$domain not found");
      }
      $cmd = "curl -s -X DELETE \"https://api.cloudflare.com/client/v4/zones/$id/purge_cache\" -H \"X-Auth-Email: $email\" -H \"X-Auth-Key: $key\" -H \"Content-Type: application/json\" --data '{\"files\":[\"$url\"]}'";
      $r = shell_exec($cmd);
      $rr = json_decode($r, false);
      if (!$rr) {
        throw new Exception("failure: $r");
      }
      if (!isset($rr->success)) {
        throw new Exception($rr->errors . '  ' . $rr->messages);
      }
      echo "Cache Removed:  $url  \n";
  }
}

$data = getZones($key, $email);
removeCache([
                "https://helloacm.com",
                "https://helloacm.com/sitemap.xml",
                "https://helloacm.com/archives-of-pagesposts",
                "https://helloacm.com/top",
                "https://helloacm.com/robots.txt",
                "https://helloacm.com/feed",
                "https://helloacm.com/page/2",
                "https://helloacm.com/page/3",
                "https://helloacm.com/page/4",
                "https://helloacm.com/page/5"
              ], 
              $key, $email, $data
);