>From the looks of it, if i were to do the same, I
would rather make second class the one I initiate and
"return" it, but that would require a third.
And the error is strange because you're doing
something strange!
What do you want to do ? Be able to access base_class
stuff from second_class ? If so :
<?php
class base_class {
function base_class() { do something ... ; }
var $some = 200;
};
class second_class {
var $foo;
function second_class(&$oref) //constructor
{
$this->foo = &$oref;
}
};
$base = new base_class;
$second = new second_class($base);
$second->foo->some = 100;
// here it is, base_class' some is accessible
?>
HTH
Mukul Sabharwal
> From: "Fabio Rotondo" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, August 12, 2003 2:38 AM
> Subject: [PHP] Strange problem in class creation
>
> Hi all,
>
> I have encountered a "tricky" problem with PHP 4.3.1
(installed with
> SuSE 8.2).
> I don't know if it is a bug or not. Maybe is just me
missing something.
>
> What I'd like to do is to pass a reference of
"base_class" instance to the
> constructor of "second_class" (so that the newly
created "second_class"
> instance can
> call methods from the "base_class" instance.
> It seems that if "base_class" constructor directly
calls its method
> "create()" (that is
> responsible of creating the "second_class" instance,
passing _$this_ as
> constructor
> argument) the second_class gets a "copy" of
"base_class" instance and
> not the real thing.
>
> To test it, I have added an array ($arr) in the
base_class and set a
> value into it.
> If "second_class" really have a reference to the
"real" base_class
> instance, it should be
> able to print its contents, but this just doesn't
work.
>
> Please, notice that if in the following code you
remove the line
> "$this->create()"
> in the base_class constructor and add the commented
line in the main
> body, everything
> works fine.
>
> What I am really missing?
>
> Please, help!
>
> Ciao,
>
> Fabio
>
> ---- CODE STARTS HERE
------------------------------------------
> <?php
> class base_class
> {
> var $arr;
> var $class;
>
> function base_class ()
> {
> $this->arr = array ();
> $this->class = false;
>
> // it seems to create another
"instance" of base_class
> $this->create (); //
this line does not work
> }
>
> function set ( $val )
> {
> $this->arr [] = $val;
> }
>
> function create ()
> {
> $this->class = new second_class (
$this );
> }
>
> function test ()
> {
> $this->class->dump ();
> }
> }
>
> class second_class
> {
> function second_class ( & $main_class )
> {
> $this->main_class = & $main_class;
> }
>
> function dump ()
> {
> print_r ( $this->main_class->arr );
> }
> }
>
> $b = new base_class ();
> // $b->create (); // This line works
as expected
> $b->set ( "ciao" );
> $b->test ();
> print "<br />";
> print_r ( $b->arr );
>
> ?>
> ---- END CODE
---------------------------------------------
>
=====
Mukul Sabharwal ([EMAIL PROTECTED])
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