Abstract
An abstract class provides a partial implementation that other classes can build upon. When a class is declared as abstract it means that the class can contain incomplete methods that must be implemented in child classes, in addition to normal class members.
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© 2013 Mikael Olsson
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Olsson, M. (2013). Abstract. In: PHP Quick Scripting Reference. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4302-6284-8_15
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DOI: https://doi.org/10.1007/978-1-4302-6284-8_15
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