brian wrote:
Michael Cooper wrote:
Hello, I have a question--is the note from equazcion here correct? It
is left unchallenged on the page but I can't see how it is correct
since I am under the impression that the environment is refreshed each
page load and the function or method definitions (including those for
session_set_save_handler) would need to be re-established each page,
not each session. I am having tremendous difficulty debugging some
code I wrote and eliminating my uncertainty regarding this point would
be greatly helpful. Any advice would be appreciated. Thanks!
Because i'm already procrastinating ...
google "site:php.net equazcion"
http://www.php.net/session_set_save_handler
wherein:
equazcion
10-Mar-2007 02:44
I know this might be obvious, but session_set_save_handler() should
only be called once per session, or else your saved data will keep
getting reset.
If your script doesn't have a predictable start page that will only
be called only once per session, place the session_set_save_handler
statement in an include file, and call it via require_once().
I doubt that this is correct. The save handler that is being set is not,
in itself, a part of the session, but a function that is to be used to
act upon the session. That is, there isn't anything inherent to the
session in the function. Thus, it wouldn't be saved as *a part of* the
session. It's just a handler. It's not as if the function, itself, were
a container for the session vars.
Looking at the source in head for that function[1] it would appear to
fail if a session has already been started, in which case equizcion's
comment would be wrong.
If the OP is concerned about it I suggest they try it and see what happens.
-Stut
[1] http://lxr.php.net/source/php-src/ext/session/session.c#1473
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