MyShaarli/application/feed/Cache.php
VirtualTam dfc650aa23 namespacing: \Shaarli\Feed\{Cache,CachedPage,FeedBuilder}
Signed-off-by: VirtualTam <virtualtam@flibidi.net>
2019-01-12 22:47:48 +01:00

38 lines
839 B
PHP

<?php
/**
* Cache utilities
*/
/**
* Purges all cached pages
*
* @param string $pageCacheDir page cache directory
*
* @return mixed an error string if the directory is missing
*/
function purgeCachedPages($pageCacheDir)
{
if (! is_dir($pageCacheDir)) {
$error = sprintf(t('Cannot purge %s: no directory'), $pageCacheDir);
error_log($error);
return $error;
}
array_map('unlink', glob($pageCacheDir.'/*.cache'));
}
/**
* Invalidates caches when the database is changed or the user logs out.
*
* @param string $pageCacheDir page cache directory
*/
function invalidateCaches($pageCacheDir)
{
// Purge cache attached to session.
if (isset($_SESSION['tags'])) {
unset($_SESSION['tags']);
}
// Purge page cache shared by sessions.
purgeCachedPages($pageCacheDir);
}