How to define classes in php object-oriented

This article mainly introduces the relevant knowledge of "how to define classes in php object-oriented". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to define classes in php object-oriented" can help you solve the problem.

1. Use the keyword class to define a Human class. Human is the name of a class, which can be set by yourself just like the function name. Human means person. Here, a person's category is defined.

2. Instantiate the class

$Xiaoming=new Human ()

At this point, you just instantiate the class, and $Xiaoming is the object of the Human class.

We can set a value for this object. Some methods need to be added to set the value:

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