Simple Guzzle pattern for reading a RSS Feed. This assumes you are using Laravel or something similar.

laravel-blog-rss-read.php

<?php

// use GuzzleHttp\Client;
// use Cache;

// 86400 = 1 day // 604800 = 1 week
$feed = Cache::remember('rr-blog', 86400, function()
{
  $client = new Client([
    'base_uri' => 'https://blog.raceroster.com/',
    'timeout'  => 2.0,
    ]);
  $response = $client->get('feed/');
  $data = $response->getBody()->getContents();
  return $data;
});
// you cannot serialize `simplexml_load_string`, so we convert it after
$feed = simplexml_load_string($feed);