There is no problem with the abstract code in the PHP manual, what is wrong with the following code?

Abstract class a{    abstract public Function B ();   } Class B extends a{public    function B () {        print "OK";    }} $k = new B ();

$k did not call the B () method, why does it appear
There is no problem with the abstract code in the PHP manual, what is wrong with the above code?

Reply to discussion (solution)

Nothing wrong.

Class B extends a{
Public Function B () {
print "OK";
}
}
Method B is a constructor of class B that executes automatically when instantiated, so OK is output

Nothing wrong.

Class B extends a{
Public Function B () {
print "OK";
}
}
Method B is a constructor of class B that executes automatically when instantiated, so OK is output

As long as a function with the same letter as the class name would be considered a constructor?

Nothing wrong.

Class B extends a{
Public Function B () {
print "OK";
}
}
Method B is a constructor of class B that executes automatically when instantiated, so OK is output

Thank you very much, checkout.

That's right!
A method with the same name as a class is a constructor
This is a feature inherited from C + +

And the constructor __construct is inherited from Java.

In PHP, two methods of declaring constructors coexist

