extending classes and constructors...

[The Plankmeister]

Hi...

Consider the following code:

-----8<-----8<-----8<-----8<-----

class A
{
var $str_text;

function A()
{
echo "Class A, constructor A";
$this->str_text = "I am in class A";
echo "A: $this->str_text";
}
}

class B extends A
{
var $str_more_text;

function B()
{
echo "Class B, constructor B";
$this->str_more_tex t = "I am in class B";
var_dump($this->str_text);
var_dump($this->str_more_text) ;
}
}

$cls_new = new B;

----->8----->8----->8----->8-----

The constructor for A is not called. Is it possible to call the constructor
of the parent class? I have an extended class that is dependant on data
mined in the parent class's constructor...

Plankmeister.

[Keith Bowes]

Re: extending classes and constructors...

The Plankmeister wrote:[color=blue]
> Hi...
>
> Consider the following code:
>
> -----8<-----8<-----8<-----8<-----
>
> class A
> {
> var $str_text;
>
> function A()
> {
> echo "Class A, constructor A";
> $this->str_text = "I am in class A";
> echo "A: $this->str_text";
> }
> }
>
> class B extends A
> {
> var $str_more_text;
>
> function B()
> {
> echo "Class B, constructor B";
> $this->str_more_tex t = "I am in class B";
> var_dump($this->str_text);
> var_dump($this->str_more_text) ;
> }
> }
>
> $cls_new = new B;
>
> ----->8----->8----->8----->8-----
>
> The constructor for A is not called. Is it possible to call the constructor
> of the parent class? I have an extended class that is dependant on data
> mined in the parent class's constructor...
>
> Plankmeister.
>
>[/color]

http://us3.php.net/manual/en/keyword.parent.php?

[The Plankmeister]

Re: extending classes and constructors...


"Keith Bowes" <do.not@spam.me > wrote in message
news:x9aUb.3653 $cx3.1602@fe01. usenetserver.co m...[color=blue]
> The Plankmeister wrote:[color=green]
> > Hi...
> >
> > Consider the following code:
> >
> > -----8<-----8<-----8<-----8<-----
> >
> > class A
> > {
> > var $str_text;
> >
> > function A()
> > {
> > echo "Class A, constructor A";
> > $this->str_text = "I am in class A";
> > echo "A: $this->str_text";
> > }
> > }
> >
> > class B extends A
> > {
> > var $str_more_text;
> >
> > function B()
> > {
> > echo "Class B, constructor B";
> > $this->str_more_tex t = "I am in class B";
> > var_dump($this->str_text);
> > var_dump($this->str_more_text) ;
> > }
> > }
> >
> > $cls_new = new B;
> >
> > ----->8----->8----->8----->8-----
> >
> > The constructor for A is not called. Is it possible to call the[/color][/color]
constructor[color=blue][color=green]
> > of the parent class? I have an extended class that is dependant on data
> > mined in the parent class's constructor...
> >
> > Plankmeister.
> >
> >[/color]
>
> http://us3.php.net/manual/en/keyword.parent.php?
>[/color]

Absolutely spot on. Ta muchly : )