openexchange.org using laravel

updateCurrencies.php

public function updateCurrencies()
{
  $listed = DB::table('currencies')->get();

  $ch = curl_init();
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_URL, 'https://openexchangerates.org/api/latest.json?app_id=9dfc90f4fd60462d9088aa0039ccb30d&base=USD');
  $result = curl_exec($ch);
  curl_close($ch);

  $obj = json_decode($result);
  // echo $result->access_token;

  $rates = $obj->rates;

  foreach($listed as $curr){
      $_curr = $curr->code;
      $rate = $rates->$_curr;
      $updated_at = date("Y-m-d H:i:s");
      DB::table('currencies')
      ->where('id', $curr->id)
      ->update(['updatedAt' => $updated_at, 'rate' => $rate]);
      echo "$_curr updated to $rate at $updated_at \n\n";
  }
  echo "Updating currencies finished";
}