function cache_example_form_expire_files

Submit handler that explicitly clears cache_example_files_count from cache.

Related topics

File

cache_example/cache_example.module, line 183

Code

function cache_example_form_expire_files($form, &$form_state) {
    // Clear cached data. This function will delete cached object from cache bin.
    //
    // The first argument is cache id to be deleted. Since we've provided it
    // explicitly, it will be removed whether or not it has an associated
    // expiration time. The second argument (required here) is the cache bin.
    // Using cache_clear_all() explicitly in this way
    // forces removal of the cached item.
    cache_clear_all('cache_example_files_count', 'cache');
    // Display message to the user.
    drupal_set_message(t('Cached data key "cache_example_files_count" was cleared.'), 'status');
}