Change-Id: Ide66bc396e811776a58fd6aa7c1af2337ea185bd
/**
* Fetch the value of a timestamp "check" key
*
+ * Note that "check" keys won't collide with other regular keys
+ *
* @param string $key
* @return float|bool TS_UNIX timestamp of the key; false if not present
*/
* avoid race conditions where dependent keys get updated with a
* stale value (e.g. from a DB slave).
*
+ * Note that "check" keys won't collide with other regular keys
+ *
* @see WANObjectCache::get()
*
* @param string $key Cache key