If I have an interface and I want the functions in my interface to be implemented in my sub class but the parent class must implement the interface. And Sub class extends Parent Class.
Here is what I want.
interface MyInterface {
public function find();
}
class B implements MyInterface {
}
class A extends B {
}
But an error is thrown saying find() function must be added in class B.
Anyone who could enlighten me on what am I doing wrong? thanks!
Interface is a structure, which contains a set of fields and methods that have to be implemented in every class that implements this interface. If your B
class implements MyInterface
it means it has to implement all of its methods/fields.
interface MyInterface
{
public function find();
}
class B implements MyInterface {
public function find()
{
echo "Hello world";
}
}
Does A
class have to implement this method too? I'll leave it as your homework.
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