OOP is this possible?

rulian

Basically I want a member to know whether or not its the last member called
so for example

$MyClass->SubMember($var)->submember // submember would know its the last
and
$MyClass->Submember($var) // would know its the last so it returns something other than itself?
possible?

Kudose

Taking a stab here ...

I think you would need your class in a Singleton or Registry fashion and another member to hold the last called member.

Weedpacket

Sounds problematic.

$MyClass->SubMember($var)->submember

is pretty much equivalent to

$temp = $MyClass->SubMember($var);
$temp->submember

So what you're asking is for SubMember to have the ability to predict the future so that it can decide what to return.

rulian

Weedpacket;10938911 wrote:
So what you're asking is for SubMember to have the ability to predict the future so that it can decide what to return.

EXACTLY!
Its more for a usability standpoint, i'm creating dymaic classes that will grow with recurssion , but I got aroudn the problem by basically having different outputs depending on hierchy

$Class->Subclass($var)->SubSubClass returns one thing
$Class->Subclass->SubSucClass($var) returns something else because it targets the subsubclass rather than class.

johanafm

Not sure if I'm missing the point here, but are you simply talking about the last descendant in a class hierarchy, such as:

class A {
	protected $var;
	public function __construct() {$this->var = 'a';}

public function getVar() { return 'standard: ' . $this->var; }
}
class B extends A {
	protected $var;
	public function __construct() {$this->var = 'b';}

public function getVar() { return 'standard: ' . $this->var; }
}
class C extends B {
	protected $var;
	public function __construct() {$this->var = 'c';}

public function getVar() { return '"last": ' . $this->var; }
}
$a = new A();
$b = new B();
$c = new C();

echo $a->getVar();
echo $b->getVar();
echo $c->getVar();

In that case, it is as simple as the above. Even if you construct your classes through recursion, you still need some kind of end case(s), for which you can set up the "last class" to return different things.

And if you have a member variable which may or may not point to another instance of the same class, you can always construct the function to see if $this->var is the instance of that class or not. It will be for all but the last element in the list.