Session/Class help

[Jon]

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_DisplayConten t{

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.

[Norman Peelman]

Re: Session/Class help

"Jon" <jonra@netins.c om> wrote in message
news:du2k3c$enp $1@news.netins. net...[color=blue]
> 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[/color]
now.[color=blue]
>
> What I need to do is use a variable throughout my classes that is a[/color]
Session[color=blue]
> 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_DisplayConten t{
>
> 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.[/color]
However,[color=blue]
> 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[/color]
getting[color=blue]
> 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?[/color]
Any[color=blue]
> help is appreciated.
>
>[/color]
Since $_SESSION is a superglobal do you really need to assign it to
$username?

or at least try:

var $username = '';

function set_user_sessio n()
{
if (isset($_SESSIO N['username']) && !empty($_SESSIO N['username']))
{
$this->username = $_SESSION['username'];
}
else
{
$this->username = NULL; // or whatever you want
}
}

Norm

[ZeldorBlat]

Re: Session/Class help


Jon wrote:[color=blue]
> 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_DisplayConten t{
>
> 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.[/color]

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).

[Jon]

Re: Session/Class help

"Norman Peelman" <npeelman@cfl.r r.com> wrote in message
news:uz5Nf.2116 6$_c.15839@torn ado.tampabay.rr .com...[color=blue]
> "Jon" <jonra@netins.c om> wrote in message
> news:du2k3c$enp $1@news.netins. net...[color=green]
>> 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[/color]
> now.[color=green]
>>
>> What I need to do is use a variable throughout my classes that is a[/color]
> Session[color=green]
>> 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_DisplayConten t{
>>
>> 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.[/color]
> However,[color=green]
>> 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[/color]
> getting[color=green]
>> 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?[/color]
> Any[color=green]
>> help is appreciated.
>>
>>[/color]
> Since $_SESSION is a superglobal do you really need to assign it to
> $username?
>
> or at least try:
>
> var $username = '';
>
> function set_user_sessio n()
> {
> if (isset($_SESSIO N['username']) && !empty($_SESSIO N['username']))
> {
> $this->username = $_SESSION['username'];
> }
> else
> {
> $this->username = NULL; // or whatever you want
> }
> }
>
> Norm
>
>[/color]

Yup - that did it. I actually just killed the username var off and used
$_SESSION['username'] throughout my application. I guess I didn't really
think about it being global already... I'm new to PHP classes, so it's good
to get this knowledge in. Thanks a ton for the help guys :)