Lines Matching defs:cache

17  * @param int $timestamp lastmodified time of the cache file
214  * HTTP headers. If a useable cache is present, it is passed to the web server
217  * @param string $cache cache file name
218  * @param bool $cache_ok if cache can be used
220 function http_cached($cache, $cache_ok)
224     // check cache age & handle conditional request
229         http_conditionalRequest(filemtime($cache));
230         if ($conf['allowdebug']) header("X-CacheUsed: $cache");
233         if ($conf['gzip_output'] && http_gzip_valid($cache)) {
236             readfile($cache . ".gz");
238             http_sendfile($cache);
239             readfile($cache);
257     // save cache file