Chapter 7
(Optional/Advanced)
Non-Parsed Headers ("Server Push")

Customary Server/CGI Interaction:

To Deliver Realtime Data, Disable Server Caching:

use non-parsed headers
to see the output as it is produced
the script takes complete responsibility for generation of headers
the server lets the data pass through to the client without caching it or adding headers
lower overhead for the web server itself
give the script a name that starts with nph-
example: count down for twenty seconds
source code:
- Set the global special variable "$|" to 1.
- This causes the output on the currently selected output filehandle (STDOUT by default) to be "unbuffered".
- The data is output immediately instead of being buffered.

Dan Keller Technical Services
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California, USA 94114
tel: 415 / 861-4500

Chapter 7(Optional/Advanced)Non-Parsed Headers ("Server Push")