Final Keyword in PHP

Final Keyword in PHP :

PHP 5 introduces the final keyword, which prevents child classes from overriding a method by prefixing the definition with final. If the class itself is being defined final then it cannot be extended.

Following example results in Fatal error: Cannot override final method BaseClass::moreTesting()

<?php

   class BaseClass {
      public function test() {
         echo \"BaseClass::test() called<br>\";
      }
      
      final public function moreTesting() {
         echo \"BaseClass::moreTesting() called<br>\";
      }
   }
   
   class ChildClass extends BaseClass {
      public function moreTesting() {
         echo \"ChildClass::moreTesting() called<br>\";
      }
   }
?>