http_cache_etag(PECL pecl_http:0.1.0-1.5.5) http_cache_etag — Caching by ETag Description
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 setting 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 setting 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(). Parameters
Return ValuesReturns FALSE or exits on success with 304 Not Modified if the entity is cached. See the INI setting http.force_exit for what "exits" means. Examples
Example #1 A http_cache_etag() example
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