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Re: Will this set or get a SESSION variable? [message #180834 is a reply to message #180828]

Thu, 21 March 2013 00:14

daveh
Messages: 18
Registered: March 2013

Karma:

Junior Member

On Mar 20, 6:53 pm, Christoph Becker <cmbecke...@gmx.de> wrote:
> David Heller wrote:
>> I have the following code snippet:
>
>> if(in_array($name, $this->m_names))
>> {
>> $this->m_rules[$name][] = $rule;
>> return $_SESSION[$name];
>
>> }
>> In the entire script there does not appear to be any assignment to the
>> $_SESSION super global
>> so would it be fair to say that "return $_SESSION[$name];" not only
>> creates a session variable but returns it also? And what is it set
>> to?? It appears to me that $_SESSION[$name] = " " or possibly
>> something else.
>
> You may check it out for yourself:
>
> if(in_array($name, $this->m_names))
> {
> $this->m_rules[$name][] = $rule;
> var_dump($_SESSION[$name]);
> return $_SESSION[$name];
>
> }
>
> If the session is not initialized or the session variable has not been
> set before, it will print NULL.
>
> You'll find comprehensive information about PHP sessions on
> <http://www.php.net/manual/en/book.session.php>.
>
> --
> Christoph M. Becker

I'm starting to think that it does not matter if its set to anything
because I think what the author is trying to do is just get what
$name contains for instance if the $name is equal to Robert and he has
something like "$anothername = Robert" and then does this:
$_SESSION[$anothername]
then the contents would be equal: $_SESSION[$name] ===
$_SESSION[$anothername] So what he is really doing is returning the
"key" to an associative array since
$name is a member of $m_names and its also a key for $m_rules. Very
clever and interesting technique of passing by value.

Dave

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[Message index]

		Will this set or get a SESSION variable? By: daveh on Wed, 20 March 2013 22:09
		Re: Will this set or get a SESSION variable? By: Christoph Becker on Wed, 20 March 2013 22:53
		Re: Will this set or get a SESSION variable? By: daveh on Thu, 21 March 2013 00:14
		Re: Will this set or get a SESSION variable? By: Thomas 'PointedEars' on Fri, 22 March 2013 14:41
		Re: Will this set or get a SESSION variable? By: Thomas 'PointedEars' on Fri, 22 March 2013 16:34
		Re: Will this set or get a SESSION variable? By: Robert Heller on Wed, 20 March 2013 23:39
		Re: Will this set or get a SESSION variable? By: Jerry Stuckle on Thu, 21 March 2013 03:35
		Re: Will this set or get a SESSION variable? By: Jerry Stuckle on Thu, 21 March 2013 03:32

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