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Posted by ZeldorBlat on 03/01/06 02:34
Jon wrote:
> All,
>
> I'm currently building a custom Content Management system for a site we're
> working on, and am stuck. Currently, I am using a couple of classes to run
> most of the queries throughout the application. Well, I'm pretty stuck now.
>
> What I need to do is use a variable throughout my classes that is a Session
> variable. I really can't find another solution. The syntax I was using for
> this variable before (I actually hard coded it during my testing and
> development before this point) was this:
>
> class C_DisplayContent{
>
> var $username = "S_";
>
> function foo(){
> //code that uses the variable as $this->username
> }//end foo
>
> }//end class
>
> So, what I really need now is to have the variable look like this:
>
> var $username = $_SESSION['username'];
>
> and be able to use it like normal using the $this->username syntax. However,
> PHP seems to blow up at it. I've tried numerous ways of doing this
> syntactically and I always end up with errors. The current error I'm getting
> is:
>
> Parse error: parse error, unexpected T_VARIABLE in
>
> The line is of course the line where I'm assigning the variable.
>
> What am I missing in regards to using session variables within a class? Any
> help is appreciated.
You can't initialize a class member that way with anything other than a
constant (for the most part). So function calls and other variables
are out. You can, however, initialize it through the constructor:
class foo {
public $username;
public function __construct() {
$this->username =& $_SESSION['username'];
}
}
Note that, because $this->username is assigned by reference, changes to
$this->username will also be reflected in $_SESSION (since they are two
variables pointing to the same value).
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