5-minute file cache in PHP

Question

I have a very simple question: what is the best way to download a file in PHP but only if a local version has been downloaded more than 5 minute ago?

In my actual ca

Answer 1

I think you want some (psuedo code) logic like:

if ($file exists) {
  if ($file time stamp older than 5 minutes) {
     $file = file_get_contents($url)
  }
} else {
     $file = file_get_contents($url)
}

use $file