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

You would warp it into a cache like method:

function getFile($name) {
    // code stolen from @Peter M
    if ($file exists) {
      if ($file time stamp older than 5 minutes) {
         $file = file_get_contents($url)
      }
    } else {
         $file = file_get_contents($url)
    }
    return $file;
}