While testing 4.1.0RC2 I noticed that the following script does not work as
expected:
<?php
session_register("count");
echo $_SESSION["count"]++;
session_unregister("count");
?>
When I set register_globals=off the counter is incrementing although PHP has
to unregister the variable from the session.
Further tests showed that when register_globals is set to 'on', the variable
is unregistered properly.
It also works when you use the global variable $count.
I noticed that when you replace session_unregister("count") with
unset($_SESSION['count']); the variable is also properly
deleted/"unregistered".
I think that this is not they way it should work and PHP should be fixed so
that session_unregister properly deletes the variable.
But if this is the intended behavior of php now, then it should be
documented.
I tested on:
Windows 2000 Pro + SP2,
Apache 1.3.22,
fresh PHP 4.1.0RC2 build, created with VC++ 6
using only the extensions build in by default
Christoph
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