Free Online Course: Extending Object-Oriented PHP Course provided by Treehouse is a comprehensive online course, which lasts for 1-2 hours worth of material. The course is taught in English and is free of charge.
1-2 hours worth of material
Self Paced
You should already be familiar with writing simple classes in PHP. In this course you will learn how extend the use of these classes to reuse code.
In this stage we'll look at how we can inherit from other classes and modify their properties and methods to suit our needs.
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3 objectives
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10 questions
Extend the family of classes even farther by adding another child to create a sibling relationship and extending a child to create a grandchild.
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