title: Asynchronous API calls using PHP
body: <p>I have a PHP application that fetches prices from various sources. On every execution, it's loading from over 20 API endpoints using Guzzle. Due to the load time of each call, it's taking 10-30 sec per execution cycle. If I can make all the calls in parallel, I can cut it down to less than 5 seconds.</p>
  
  <p>What's the easiest way to make parallel API calls in PHP?</p>