Child Class¶
A child class is a class that extends another class. There is not specific keyword related to child classes: unlike parent which is unique and defined, any class that extends a class is its child.
A child class may be the direct child of a class, or any of the own child.
<?php
// parent class
class V { }
// child class
class W extends V {}
// child class of V
// child class of W
class X extends W {}
?>
Related : Overwrite, static, Self, Late Static Binding
