Abstract
Inheritance allows a class to acquire the members of another class. In the example below the class Square 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.
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© 2013 Mikael Olsson
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Olsson, M. (2013). Inheritance. In: PHP Quick Scripting Reference. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4302-6284-8_10
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DOI: https://doi.org/10.1007/978-1-4302-6284-8_10
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Publisher Name: Apress, Berkeley, CA
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Online ISBN: 978-1-4302-6284-8
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