PHP script to demonstrate the problem

index.php (text/plain), 930 bytes, created by Nicholas Sherlock on 2009-07-25 05:18:51 UTC

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Description: PHP script to demonstrate the problem

Filename:

MIME Type:

Creator: Nicholas Sherlock

Created: 2009-07-25 05:18:51 UTC

Size: 930 bytes

patch

obsolete

><?php > >/* Generate our ETag. Assume that generating the ETag is > * a whole lot less expensive than generating the content > * (e.g. it could be based on revision counts for documents > * from a database). > */ >$etag="\"ComputedETag\""; > >header("Etag: $etag"); >header("Expires: " . gmdate("D, d M Y H:i:s", time() > + 60 * 60 * 24 * 30) . " GMT"); > >if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && > $_SERVER['HTTP_IF_NONE_MATCH'] == $etag) { > > /* At a users' request, the cache has been bypassed, but the > * document is still the same. Avoid costly response generation > * and waste of bandwidth by just sending not-modified. > */ > header('HTTP/1.0 304 Not Modified'); > > error_log(date('r')." - Response: 304 Not Modified\n"); > exit(); //Don't generate or send the body >} > >error_log(date('r')." - Response: 200. Generated document.\n"); > >echo "Document body goes here"; > >?> View Attachment As Raw

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