title: Updating php script one time per day
body: <p>I am making a Covid-19 statistics website - <a href="https://e-server24.eu/" rel="nofollow noreferrer">https://e-server24.eu/</a> . Every time somebody is entering the website, the PHP script is decoding JSON from 3 urls and storing data into some variables.
  I want to make my website more optimized so my question is: Is there any script that can update the variables data one time per day, not every time someone accesses the website?</p>
  <p>Thanks,</p>