Wouter,
Implementing your static idea was pretty easy, I was already referencing
Notifier with the :: operator in my other methods, however I am running into
trouble assigning new values to the static array.
I am getting a "syntax error, unexpected '[' " on this line of my Notifier
class:
Notifier::notifyQ[] = '<div class="'.$message;
. . .
Any ideas why this is causing an error?
(note: I did try using $this->Notifier, and it said I cannot do what-not to
a non-object, can't remember the exact message at the moment)
On Tue, Dec 15, 2009 at 2:30 PM, Wouter van Vliet / Interpotential <
public@xxxxxxxxxxxxxxxxxx> wrote:
> Allen,
>
> The short answer (but don't follow this):
> <?php
> class Meetgreet {
> public function deleteSingle($id, $number) {
> // do something
> global $Notify;
> $Notify->addToQ( .. );
> }
> }
> ?>
>
> The long(er) answer:
> I assume your Notifier object functions as singleton? Ie; accross your
> entire application, there is only one instance of that class?
>
> Why not go-static? That is, to my experience, the sweetest way to make
> something globally accessible - without making something global. Like so
>
> <?php
> class Notifier {
>
> protected static $queue = Array();
>
> // make sure it can't be instantiated
> private constructer __construct() {
> }
>
> public static function addToQ( $arg, $anotherArg) {
> self::$queue[] = $arg.' - '.$anotherArg;
> }
>
> }
>
> // and then from within any method anywhere, call
> Notifier::addToQ('foo', 'bar');
>
> ?>
>
> Does that work for you?
>
> Regards,
> Wouter
>
> (ps. call me a purist, but a function defined in a class is no longer
> called a function, but a *method*)
>
> 2009/12/15 Allen McCabe <allenmccabe@xxxxxxxxx>
>
>> Hey all (and Nirmalya, thanks for the help!),
>>
>>
>> I have a question that I just can't seem to find via Google.
>>
>> I want to be able to add messages to a qeue whenever my classes complete
>> (or
>> fail to complete) specific functions. I think have a call within my html
>> to
>> my Notifier class to print all qeued messages (via a function 'printQ').
>>
>> How do I access a globally instantiated class from within another class?
>>
>> Example:
>>
>> <?php
>>
>> // INSTANTIATE
>> $Meetgreet = new Meetgreet;
>> $Notify = new Notifier;
>>
>> ...
>> ...
>>
>> $Meetgreet->deleteSingle($id, 1); // This completes a function within
>> Meetgreet class. That function needs to be able to use the Notifier
>> function
>> addtoQ(), how would this be accomplished?
>>
>> ?>
>> ...
>> ...
>>
>> <?php $Notify->printQ() ?>
>>
>> On Mon, Dec 14, 2009 at 6:07 PM, Nirmalya Lahiri
>> <nirmalyalahiri@xxxxxxxxx>wrote:
>>
>> > --- On Tue, 12/15/09, Allen McCabe <allenmccabe@xxxxxxxxx> wrote:
>> >
>> > > From: Allen McCabe <allenmccabe@xxxxxxxxx>
>> > > Subject: Class not functioning
>> > > To: "phpList" <php-general@xxxxxxxxxxxxx>
>> > > Date: Tuesday, December 15, 2009, 6:17 AM
>> > > Hey everyone, I just delved into
>> > > classes recently and have been having
>> > > moderate success so far.
>> > >
>> > > I have a puzzler though.
>> > >
>> > > I have the following class decalred and instantiated:
>> > >
>> > > class Notify {
>> > > var $q = array();
>> > >
>> > > public function addtoQ($string, $class)
>> > > {
>> > > $message = '<span class="'. $class .'">'.
>> > > $string .'</span>';
>> > > $this->q[] = $message;
>> > > }
>> > >
>> > > public function printQ()
>> > > {
>> > > if (isset($q))
>> > > {
>> > > echo '<p align="center"
>> > > class="notification">';
>> > > foreach($this->q as $msg)
>> > > {
>> > > echo $msg ."\n";
>> > > }
>> > > echo '</p>';
>> > > }
>> > >
>> > > return;
>> > > }
>> > >
>> > > function __destruct()
>> > > {
>> > > if (isset($q))
>> > > {
>> > > unset($this->q);
>> > > }
>> > > }
>> > > } // END CLASS Notify
>> > >
>> > >
>> > > And in my script, I call it like so:
>> > > $Notif = new Notify;
>> > >
>> > > I have run other statements in other classes that should be
>> > > adding to the $q
>> > > array (ie. Notify::addtoQ('ERROR! There Was An Error
>> > > Updating The
>> > > Database!', 'error');)
>> > >
>> > > However, when I try to get my webpage to display them
>> > > using:
>> > >
>> > > $Notify->printQ();
>> > >
>> > > it does not seem to want to loop through this array (and
>> > > print the
>> > > messages). I am getting NO error message, in fact
>> > > everything 'looks' fine,
>> > > I'm just not seeing the appropriate message.
>> > >
>> > > Any help would be appreicated!
>> > >
>> >
>> > Allen,
>> > You have made a small typing mistake in function printQ() where you
>> would
>> > like to checked the array for its existence. By mistake you have wrote
>> "if
>> > (isset($q))". But your array variable is not an freely accessible
>> array,the
>> > array is embedded into an object. So, you have to write the like "if
>> > (isset($this->q))".
>> >
>> > Another point, you can't add a message into the array by calling the
>> > member function addtoQ() using scope resolution operator "::". If you
>> really
>> > want to add message into the array, you have to call the member function
>> > from within the object. (ie. $Notif->addtoQ('ERROR! There Was An Error
>> > Updating The Database!', 'error');).
>> >
>> > ---
>> > নির্মাল্য লাহিড়ী [Nirmalya Lahiri]
>> > +৯১-৯৪৩৩১১৩৫৩৬ [+91-9433113536]
>> >
>> >
>> >
>> >
>> >
>>
>
>
>
> --
> http://www.interpotential.com
> http://www.ilikealot.com
>
> Phone: +4520371433
>
