php
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); //
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); //
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); //
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache"); // HTTP/1.0
?>
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