Class problem

[Phil Powell]

consider this:

?

class A {

function A() {
$b = 'hello world';
}

function B() {
$c = new C();
$c->doStuff();
}

}

class C {

function C() {
$blah = 0;
}

function doStuff() {
echo 'foo bar ' . A::b;
}

}

$a = new A();

$a->B();

?>

I get a parse error on line 23 with
echo 'foo bar ' . A::b;

But I have to retrieve the property $b from class A FROM the doStuff()
method in Class C...

how do I do that?

Thanx
Phil

[Phil Powell]

Re: Class problem

Sorry this is more accurate:

<?

class A {

function A() {
$graduation_mon th = '05';
$c = new C();
$c->doStuff();
}

}

class C {

function C() {
$blah = 0;
}

function doStuff() {

}

}

$a = new A();

$a->A();

?>

Except that doStuff() needs to get the name 'graduation_mon th' and the value
$graduation_mon th that are in A. Not sure how.

Phil

[Phil Powell]

Re: Class problem

Ok I gave up on the class idea and decided on a simpler approach: include a
PHP script with a function that will return an array with elements being the
HTML strings I need. I however, have to have the showApplicant class
because that's been pre-existing in the original site structure since I
started working where I work at, so getting rid of it will pretty much
destroy most of the existing site. So here is something that I would want:

<?
function DropdownGenerat or($monthName = '', $dayName = '', $yearName = '')
{
$blah = array("$monthNa me = ${$monthName}",
"$dayName = ${$dayName}",
"$yearName = ${$yearName}"
);
return $blah;
}

class showApplicant {

function showApplicant() {
$graduation_mon th = '05';
$graduation_yea r = '2001';
print_r(Dropdow nGenerator('gra duation_month', '', 'graduation_yea r'));
}

}

$app = new showApplicant() ;


?>


However, I cannot still get the values of $graduation_mon th, etc. I cannot
change showApplicant class no matter what, but I can change the
DropdownGenerat or function, how must I do so to make sense?

Phil

[Bruno Desthuilliers]

Re: Class problem

Phil Powell wrote:[color=blue]
> Sorry this is more accurate:
>
> <?
>
> class A {
>
> function A() {
> $graduation_mon th = '05';
> $c = new C();
> $c->doStuff();
> }
>
> }
>
> class C {
>
> function C() {
> $blah = 0;
> }
>
> function doStuff() {
>
> }
>
> }
>
> $a = new A();
>
> $a->A();
>
> ?>
>
> Except that doStuff() needs to get the name 'graduation_mon th' and the value
> $graduation_mon th that are in A. Not sure how.[/color]

What do you think function args are for ?

class C {
function doStuff($name, $value) {
// do whatever with $name and $value
}
}

class A {
function A() {
$graduation_mon th = '05';
$c = new C();
$c->doStuff('gradu ation_month', $graduation_mon th);
}
}

Bruno

[Bruno Desthuilliers]

Re: Class problem

Phil Powell wrote:[color=blue]
> consider this:
>
> ?
>
> class A {
>
> function A() {
> $b = 'hello world';
> }
>
> function B() {
> $c = new C();
> $c->doStuff();
> }
>
> }
>
> class C {
>
> function C() {
> $blah = 0;
> }
>
> function doStuff() {
> echo 'foo bar ' . A::b;[/color]

b is not a property of class A, it's a local variable in method A::A().
if you want b to be a property of class A, you need to declare class A
like this :

class A {
var $b = 'hello world';

// etc
}

Now by accessing b with the A::b syntax, you'll have the same value for
all and every instances of A (the value you initialized A::b with).

I think what you want is :

class C {
function doStuff($a) {
echo 'foo bar ' . $a->b;
}
}

class A {
var b = '';

function A() {
$this->b = 'baaz';
}

function fun() {
$c = new C();
$c->doStuff($this) ;
}
}


HTH
Bruno

[Michael Rasmussen]

Re: Class problem

Den Thu, 16 Oct 2003 01:18:45 -0400. skrev Phil Powell:
[color=blue]
>
> However, I cannot still get the values of $graduation_mon th, etc. I
> cannot change showApplicant class no matter what, but I can change the
> DropdownGenerat or function, how must I do so to make sense?
>[/color]
Why not:
class DropdownGenerat or {
var $month = array(
'0' => 'January',
'1' => 'February',
etc..
);
var $day = array(
'0' => 'Monday',
'1' => 'Tuesday',
etc.
);
var $year = array(
'0' => 'xxxx',
'1' => 'yyyy',
etc.
);
var $blah;

function getDropdownGene rator($monthNam e, $dayName, $yearName) {
$this->blah = array(
$monthName => $month->$monthName,
$dayName => $day->$dayName,
$yearName => $year->$yearName
);
return $this->blah;
}
}

class ShowApplicant extends DropdownGenerat or {

var $graduation_mon th;
var $graduation_yea r;
var $graduation_day ;

function showApplicant($ d = '', $m = '', $y = '') {
$this->graduation_mon th = $m;
$this->graduation_yea r = $y;
$this->graduation_d ay = $d;
}

function setOptions($d, $m, $y) {
$this->graduation_mon th = $m;
$this->graduation_yea r = $y;
$this->graduation_d ay = $d;
}

function getPrint() {
return getDropdownGene rator(
$this->graduation_mon th,
$this->graduation_day ,
$this->graduation_yea r
);
}
}

$obj = &new ShowApplicant() ;
$obj->setOptions('1' ,'1','2003');
print_r($obj->getPrint());

Ontested!

--
Hilsen/Sincerely, Michael Rasmussen

En windows admin er en person, for hvem den største bedrift er, at
lave konfiguration af serveren med trial and error via en gui.

[Phil Powell]

Re: Class problem

I'm sorry, I understood none of what you said. Je ne comprends pas
tout ce que tu as ecrit a moi.

In fact, I wound up with a solution on my own involving variable
bundling and passing collections into the class instead.
Phil


Bruno Desthuilliers <bdesth.nospam@ removeme.free.f r> wrote in message news:<3f8e6448$ 0$27588$626a54c e@news.free.fr> ...[color=blue]
> Phil Powell wrote:[color=green]
> > consider this:
> >
> > ?
> >
> > class A {
> >
> > function A() {
> > $b = 'hello world';
> > }
> >
> > function B() {
> > $c = new C();
> > $c->doStuff();
> > }[/color]
>[color=green]
> > }
> >
> > class C {
> >
> > function C() {
> > $blah = 0;
> > }
> >
> > function doStuff() {
> > echo 'foo bar ' . A::b;[/color]
>
> b is not a property of class A, it's a local variable in method A::A().
> if you want b to be a property of class A, you need to declare class A
> like this :
>
> class A {
> var $b = 'hello world';
>
> // etc
> }
>
> Now by accessing b with the A::b syntax, you'll have the same value for
> all and every instances of A (the value you initialized A::b with).
>
> I think what you want is :
>
> class C {
> function doStuff($a) {
> echo 'foo bar ' . $a->b;
> }
> }
>
> class A {
> var b = '';
>
> function A() {
> $this->b = 'baaz';
> }
>
> function fun() {
> $c = new C();
> $c->doStuff($this) ;
> }
> }
>
>
> HTH
> Bruno[/color]

[Phil Powell]

Re: Class problem

Sorry I can't do that. If I rewrote showApplicant like that nearly
the entire prewritten site I inherited would fail because
showApplicant has to be standalone.

What I wound up doing was variable bundling into a new class I wrote,
DateGroupHTMLGe nerator and handling it that way, works perfectly,
except that there is now some bug involving array_search and
array_keys (more on that in another post).
Thanx though

Phil

Michael Rasmussen <mir@datanom.ne t> wrote in message news:<pan.2003. 10.16.10.48.53. 146570@datanom. net>...[color=blue]
> Den Thu, 16 Oct 2003 01:18:45 -0400. skrev Phil Powell:
>[color=green]
> >
> > However, I cannot still get the values of $graduation_mon th, etc. I
> > cannot change showApplicant class no matter what, but I can change the
> > DropdownGenerat or function, how must I do so to make sense?
> >[/color]
> Why not:
> class DropdownGenerat or {
> var $month = array(
> '0' => 'January',
> '1' => 'February',
> etc..
> );
> var $day = array(
> '0' => 'Monday',
> '1' => 'Tuesday',
> etc.
> );
> var $year = array(
> '0' => 'xxxx',
> '1' => 'yyyy',
> etc.
> );
> var $blah;
>
> function getDropdownGene rator($monthNam e, $dayName, $yearName) {
> $this->blah = array(
> $monthName => $month->$monthName,
> $dayName => $day->$dayName,
> $yearName => $year->$yearName
> );
> return $this->blah;
> }
> }
>
> class ShowApplicant extends DropdownGenerat or {
>
> var $graduation_mon th;
> var $graduation_yea r;
> var $graduation_day ;
>
> function showApplicant($ d = '', $m = '', $y = '') {
> $this->graduation_mon th = $m;
> $this->graduation_yea r = $y;
> $this->graduation_d ay = $d;
> }
>
> function setOptions($d, $m, $y) {
> $this->graduation_mon th = $m;
> $this->graduation_yea r = $y;
> $this->graduation_d ay = $d;
> }
>
> function getPrint() {
> return getDropdownGene rator(
> $this->graduation_mon th,
> $this->graduation_day ,
> $this->graduation_yea r
> );
> }
> }
>
> $obj = &new ShowApplicant() ;
> $obj->setOptions('1' ,'1','2003');
> print_r($obj->getPrint());
>
> Ontested![/color]