Auto delete cache after cache lifetime is expired

[Lucifix]

I checked my cache directory and I found out that there are some very old cache files which have already been expired but till now none of the visitors has visit that page which cache belongs to.

That's why I'm wondering wouldn't be good if somehow cache is automatically deleted/removed when cache lifetime is expired?

I don't know how that would effect server load if every time someone refresh page cache directory is checked if there are expired files?

[x23piracy]

I checked my cache directory and I found out that there are some very old cache files which have already been expired but till now none of the visitors has visit that page which cache belongs to.

That's why I'm wondering wouldn't be good if somehow cache is automatically deleted/removed when cache lifetime is expired?

I don't know how that would effect server load if every time someone refresh page cache directory is checked if there are expired files?

Hi,

you can compare timestamp every time someone refreshes the page and only if the time between the
actual and the last timestamp is higher then X it checks for expired files and delete them...


Greetz X23

[Lucifix]

I checked my cache directory and I found out that there are some very old cache files which have already been expired but till now none of the visitors has visit that page which cache belongs to.

That's why I'm wondering wouldn't be good if somehow cache is automatically deleted/removed when cache lifetime is expired?

I don't know how that would effect server load if every time someone refresh page cache directory is checked if there are expired files?

Hi,

you can compare timestamp every time someone refreshes the page and only if the time between the
actual and the last timestamp is higher then X it checks for expired files and delete them...


Greetz X23

This is what I have in mind, but I'm worried that this will only make higher server load.

I haven't tested this yet, but maybe this will do it:

Code: [Select]

function delete_cache_folder() {
  global $cache_enable, $cache_lifetime, $cache_path;

  $days = 1;
  $handle = opendir($cache_path);
  while ($file = @readdir($handle)) {
    if (is_dir($file) || $file{0} == ".") {
      continue;
    }
    if ((time() - filemtime($cache_path . '/' . $file)) & ($days * 86400)) {
unlink($cache_path . '/' . $file);
}
  }
}Modified from:
http://www.danmyers.name/wp/2008/12/delete-files-older-than-xx-days-using-php/