Getting Started with PHP 8 object-oriented 2 abstract class

1. Abstract classes must be inherited to be used, not directly new

2. Abstract classes can have non-abstract methods

3. Subclasses must implement all abstract methods

4. Abstract class with Java

(Click to go) Abstract class for Java

    
     //抽象类关键字 abstract  抽象类不能实例化 必须被继承才能使用abstractclass_parent{//抽象方法关键字 abstractpublicabstractfunctionfun1();//抽象类中可以用非抽象方法publicfunctionparentfunc() {echo"Hello
";        }    }    classTestextends_parent{//必须实现抽象类的所有抽象方法publicfunctionfun1(){echo"class Test
";        }    }    $A = new  Test();    $A->fun1();    $A->parentfunc();?>

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The above introduces the introduction of PHP 8 Object-oriented 2 abstract class, including the aspects of the content, I hope to be interested in PHP tutorial friends helpful.

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