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smarty/docs/programmers/api-variables/variable-cache-modified-check.md
Simon Wisselink cdf1ed2a50 Simplified the (no)caching architecture by: 
- removing support for $cache_attrs for registered plugins,
- removing the undocumented {make_nocache} tag and the deprecated {insert} tag and associated code
- removing support for a compile_id property on include tags.

Fixes a bug in extends: resources by propagating the nocache-hashes between a master template and it's subtemplates in \Smarty\Template::_subTemplateRender. This might need further improvement.
2023-01-13 15:47:57 +01:00

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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.

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