Ken Kixmoeller -- reply to ken@xxxxxxxxxxxxxx wrote:
OK, Jochem, I adapted your example and got it working. Thank you very
much.
I am still playing with it to better understand. One thing I don't yet
understand is the necessity for the getFoo()/getBar() "handshake,"
especially the getbar() in the BAR class. That doesn't seem to serve
any purpose. My adaptation us just a getDummy().
Do they just serve to pass the object by reference?
Ken
--------------------------------------------------------------
On Jan 26, 2007, at 5:47 PM, Jochem Maas wrote:
class Foo
{
private $var;
function __construct() { $this->var = "foo"; }
function getFoo() { return $this->var; }
}
class Bar
{
private $var;
private $foo;
function __construct() { $this->var = "bar"; $this->foo = new Foo; }
function getBar() { return $this->var; }
function speak() { echo "I am
",$this->foo->getFoo(),$this->getBar(),"\n"; }
}
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Assigning another class to a class variable is a standard OO technique,
so it's not surprising that it's implemented in PHP. I believe it's
called "composition", though that term seems to have a wider definition.
What is it that seems odd about what you call the getFoo()/getBar()
"handshake" ? Actually, what do you mean by that? I could be missing
something, but at the moment the two classes and their calls seem pretty
straight-forward.
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http://www.bstatzero.org
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