function drupal_delete_file_if_stale

Deletes files modified more than a set time ago.

Callback for file_scan_directory() within:

• drupal_clear_css_cache()
• drupal_clear_js_cache()

File

drupal/core/includes/common.inc, line 2588

Common functions that many Drupal modules will need to reference.

Code

function drupal_delete_file_if_stale($uri) {

  // Default stale file threshold is 30 days.
  if (REQUEST_TIME - filemtime($uri) > config('system.performance')
    ->get('stale_file_threshold')) {
    file_unmanaged_delete($uri);
  }
}