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# $cache_modified_check

If set to `TRUE`, Smarty will respect the If-Modified-Since header sent from the client. If the cached file timestamp has not changed since the last visit, then a `'304: Not Modified'` header will be sent instead of the content. This works only on cached content without `{insert}` tags.

See also `$caching`, `$cache_lifetime`, `$cache_handler_func`, and the caching section.

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$cache_handler_func | Up | $config_overwrite