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+--- Thread: unset_userdata (/showthread.php?tid=2903)
unset_userdata - El Forum - 08-30-2007
[eluser]Colin Carter[/eluser]
Hello,
I'm not sure if I'm using unset_userdata() properly, but if I wanted to unset a number of session variables using an array unset_userdata() doesn't work.
For example:
Code:
$this->session->unset_userdata(array('name', 'data'));doesn't unset the 'name' and 'data' session variables. This is, I believe, due to the line in unset_userdata() unsetting based on an array key not its value.
Code:
unset($this->userdata[$key]);if I'm using unset_userdata() incorrectly please could you let me know how to use it. I read that it's been documented in svn but I couldn't find how to check it out.
Many thanks
unset_userdata - El Forum - 08-30-2007
[eluser]johnwbaxter[/eluser]
The html page in the userguide
unset_userdata - El Forum - 08-30-2007
[eluser]xwero[/eluser]
Is it already implemented in the current release? The current userguide doesn't have the unset_userdata section.
unset_userdata - El Forum - 08-30-2007
[eluser]johnwbaxter[/eluser]
No the current userguide does not have it documented, the code is however present in the current released codebase (1.5.4) and you can use it just fine.
unset_userdata - El Forum - 08-30-2007
[eluser]Colin Carter[/eluser]
There's also a typo in this documentation:
Quote:Removing Session Data
Just as set_userdata() can be used to add information into a session, unset_userdata() can be used to remove it, by passing the session key. For example, if you wanted to remove 'some_name' from your session information:
$this->session->unset_userdata('some_name');
This function can also be passed an array of items to unset.
$array_items = array('username', 'email');
$this->session->set_userdata($array_items);
Code:
$this->session->set_userdata($array_items);Code:
$this->session->unset_userdata($array_items);but this won't work because 'username' and 'email' are values and unset_userdata() unsets based on their keys (0 & 1)
unset_userdata - El Forum - 08-30-2007
[eluser]johnwbaxter[/eluser]
Have you e-mailed derek allard to let him know?
unset_userdata - El Forum - 08-30-2007
[eluser]Colin Carter[/eluser]
here's my fixed version:
Code:
function unset_userdata($newdata = array())
{
if (is_string($newdata))
{
$newdata = array($newdata);
}
if (count($newdata) > 0)
{
foreach ($newdata as $val)
{
unset($this->userdata[$val]);
}
}
$this->sess_write();
}unset_userdata - El Forum - 08-30-2007
[eluser]johnwbaxter[/eluser]
I suggest using OBsession, i use it and it works great.
unset_userdata - El Forum - 08-30-2007
[eluser]Colin Carter[/eluser]
OBsession uses the same unset_userdata() function
unset_userdata - El Forum - 08-30-2007
[eluser]johnwbaxter[/eluser]
Nice, i'll admit i haven't passed an array to that function yet. I'll have to bear this in mind.
Thanks.