Challenge: Dependency Injection

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Task 1

Write an Article class that is dependent on an Author class and introduce the Author object through dependency injection into the constructor.

• Write the Article class with $title for the title of the article, and $Author to hold the author object.
• Add a constructor method to the Article class that gets the parameters of $title and $author and sets the class’s properties accordingly.
• Write a getter method that returns the article’s title.
• Add a getter method that returns the Authorobject.
• Write another class named Author that has a protected property $name and setter and getter methods that handle the property.
• Now in the test() method, create an Author object, name it $author1, and then set its name to Joe.
• Create the Article object, call it $article1, and name it To PHP and Beyond and the $author1 object that you’ve just created.

Expected output

Write code that returns the following string:

To PHP and Beyond by Joe

Coding exercise