Class using another class's functions?

[Cagez]

Lets say I made class A that has a function that adds two numbers together, I make an instance of calls A and name it $A.

Now, I make another class, class B that needs to use the function from class A. I don't want class B to inherit A's function, I want to use the function from a class A instance, could I do it like this:

$A = new A();

class B
{
    function somefunc()
    {
        global $A;
        $A->someotherfunc();
    }
}

Dunno if that made sense, but... 😃

TIA 🙂

[ahundiak]

I didn't see a question but what you posted will work.

An alternative is to store a reference to $A inside of $B.

class B
{
  function B(&$A)
  {
    $this->A =& $A;
  }
  function somefunc()
  {
    $this->A->someotherfunc();
  } 
}

[128kb_com]

Or if you dont need to instantiate class A then you can statically call A's methods from B (or anywhere) with the :: operator

class B 
{ 
     function somefunc() 
     { 
          A::someotherfunc(); 
     } 
}