6.6 Objects within objectsThis is NOT the latest copy of this book; click here for the latest version.
You can use objects inside other objects in the same as other variable types. For example, we could define a dogtag class and give each dog a dogtag object like this:
class dogtag {
public $Words;
}
class dog {
public $Name;
public $DogTag;
public function bark() {
print "Woof!\n";
}
}
Accessing objects within objects is as simple as using -> again:
$poppy = new poodle;
$poppy->Name = "Poppy";
$poppy->DogTag = new dogtag;
$poppy->DogTag->Words = "My name is
Poppy. If you find me, please call 555-1234";
Note that $DogTag variable is declared like any other, but needs to be created with "new" once $poppy has been created.
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