
Druckansicht von http://www.php-homepage.de/manual/function.http-cache-etag.php
http_cache_etag(PECL pecl_http >= 0.1.0) http_cache_etag — Caching by ETag Beschreibung
bool http_cache_etag
([ string $etag
] )
Attempts to cache the sent entity by its ETag, either supplied or generated by the hash algorithm specified by the INI-Einstellungen http.etag.mode. If the clients If-None-Match header matches the supplied/calculated ETag, the body is considered cached on the clients side and a 304 Not Modified status code is issued. A log entry is written to the cache log if the INI-Einstellungen http.log.cache is set and the cache attempt was successful.
If this function is used outside the http_send_*() API, it facilitates the ob_etaghandler(). Parameter-Liste
RückgabewerteLiefert FALSE oder beendet bei Erfolg with 304 Not Modified if the entity is cached. INI-Einstellungen http.force_exit beschreibt, was "exits" bedeutet. Beispiele
Beispiel #1 A http_cache_etag() example
<?phpSiehe auch
|