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Editor to share with you how to use the interface interface to achieve multiple inheritance, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

The following is an example of multiple inheritance using an interface (interface). The source code is as follows:

InterfaceUserInterface {/ / defines the interface of User

Functiongetname ()

}

InterfaceTeacherInterface {/ / teacher related APIs

FunctiongetLengthOfService ()

}

ClassUserimplementsUserInterface {/ / implement UserInterface interface

Private$name= "tom"

PublicfunctiongetName () {

Return$this- > name

}

}

ClassTeacherimplementsTeacherInterface {/ / implement TeacherInterface interface

Private$lengthOfService=5;// length of service

PublicfunctiongetLengthOfService () {

Return$this- > lengthOfService

}

}

How to use interface (interface) to implement multiple inheritance

/ / inherits from the User class and implements the TeacherInterface interface.

ClassGraduateStudentextendsUserimplementsTeacherInterface {

Private$teacher

Publicfunction__construct () {

$this- > teacher=newTeacher ()

}

PublicfunctiongetLengthOfService () {

Return$this- > teacher- > getLengthOfService ()

}

}

ClassAct {

/ / notice that the type prompt here has been changed to interface type.

PublicstaticfunctiongetUserName (UserInterface$_user) {

Echo "Nameis". $_ user- > getName (). "

"

}

/ / the type prompt here has been changed to TeacherInterface type.

PublicstaticfunctiongetLengthOfService (TeacherInterface$_teacher) {

Echo "Ageis". $_ teacher- > getLengthOfService (). "

"

}

}

$graduateStudent=newGraduateStudent ()

Act::getUserName ($graduateStudent)

Act::getLengthOfService ($graduateStudent)

/ / as a result, an object with multiple identities is implemented.

? >

The running result of the example is as follows:

Nameistom

Ageis5

The above is all the content of the article "how to use interface interface to achieve multiple inheritance". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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