Abstract
Inheritance allows a class to acquire the members of another class. In the following example, the Square class inherits from Rectangle, specified by the extends keyword. Rectangle then becomes the parent class of Square, which in turn becomes a child class of Rectangle. In addition to its own members, Square gains all accessible (non-private) members in Rectangle, including any constructor.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2016 Mikael Olsson
About this chapter
Cite this chapter
Olsson, M. (2016). Inheritance. In: PHP 7 Quick Scripting Reference. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-1922-5_10
Download citation
DOI: https://doi.org/10.1007/978-1-4842-1922-5_10
Published:
Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-1921-8
Online ISBN: 978-1-4842-1922-5
eBook Packages: Professional and Applied ComputingProfessional and Applied Computing (R0)Apress Access Books