function cache_set in Drupal 4

Same name and namespace in other branches

1. 5 includes/cache.inc \cache_set()
2. 6 includes/cache.inc \cache_set()
3. 6 includes/cache-install.inc \cache_set()
4. 7 includes/cache.inc \cache_set()

Store data in the persistent cache.

Parameters

$cid: The cache ID of the data to store.

$data: The data to store in the cache. Complex data types must be serialized first.

$expire: One of the following values:

• CACHE_PERMANENT: Indicates that the item should never be removed unless explicitly told to using cache_clear_all() with a cache ID.
• CACHE_TEMPORARY: Indicates that the item should be removed at the next general cache wipe.
• A Unix timestamp: Indicates that the item should be kept at least until the given time, after which it behaves like CACHE_TEMPORARY.

$headers: A string containing HTTP header information for cached pages.

6 calls to cache_set()

archive_calendar in modules/archive.module

Generates a monthly calendar, for display in the archive block.

check_markup in modules/filter.module

Run all the enabled filters on a piece of text.

locale_refresh_cache in modules/locale.module

Refreshes database stored cache of translations.

menu_get_menu in includes/menu.inc

Return the menu data structure.

page_set_cache in includes/common.inc

Store the current page in the cache.

... See full list

File

includes/bootstrap.inc, line 375

Functions that need to be loaded on every Drupal request.

Code

function cache_set($cid, $data, $expire = CACHE_PERMANENT, $headers = NULL) {
  db_lock_table('cache');
  db_query("UPDATE {cache} SET data = %b, created = %d, expire = %d, headers = '%s' WHERE cid = '%s'", $data, time(), $expire, $headers, $cid);
  if (!db_affected_rows()) {
    @db_query("INSERT INTO {cache} (cid, data, created, expire, headers) VALUES ('%s', %b, %d, %d, '%s')", $cid, $data, time(), $expire, $headers);
  }
  db_unlock_tables();
}