http\Response

[mdref/mdref-http] / http / Env / Response / isCachedByEtag.md

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+# int http\Env\Response::isCachedByEtag([string $header_name = "If-None-Match"])
+
+Manually test the header $header_name of the environment's request for a cache hit.
+http\Env\Response::send() checks that itself, though.
+
+## Params:
+
+* Optional string $header_name = "If-None-Match"  
+  The request header to test.
+
+## Returns:
+
+* int, a http\Env\Response::CACHE_* constant.