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PHP inheritance in the application of method overloading (overwrite), PHP overload
This paper analyzes the application of method overloading (overwriting) in PHP inheritance. Share to everyone for your reference. The specific analysis is as follows:
This article mainly introduces the overloading and rewriting in the PHP face object. Have a good reference value, follow the small series together to see it
Overriding overriding is a representation of polymorphism between a parent class and a
Overriding is a manifestation of the polymorphism between the parent class and the child class, and Overloading is a manifestation of the polymorphism in a class. The Overloaded method can change the type of the returned value. That is to say, the
Overriding overriding is a representation of polymorphism between a parent class and a subclass, and overloading overloading is a representation of polymorphism in a class. The overloaded method is to change the type of the return value. That is,
In this article, I would like to give you an explanation of the overloaded parent class in the object-oriented subclass of PHP, and I hope this article will help you understand the overloaded parent class in PHP subclasses.
Because a function with
What is polymorphism?
Polymorphism (polymorphism) literally means "multiple states." In object-oriented languages, many different implementations of interfaces are polymorphic. Citing Charlie Calverts's description of polymorphism-polymorphism is a
You cannot define a function with the same name in PHP, or a method that cannot define a duplicate name in the same class, so there is no method overload. In subclasses, you can define a method that has the same name as the parent, because the
PHP methods are not overloaded, so-called method overloading is to define the same method name, through the "number of parameters" different or "parameter type", to access our different methods of the same method name, inheritance is an important
Maybe we seldom use this piece of knowledge in our daily work, but I still like to find out the unknown knowledge.
class method rewrite rules for PHP
1. The final modified class method cannot be overridden by a quilt class
The final decorated class
PHP Object-oriented Essentials summary, PHP object-oriented essentials
This article summarizes the Essentials of PHP object-oriented programming. Share to everyone for your reference. The specific analysis is as follows:
1 using extends to
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