What does 'final class' and 'final function' (final method) mean in PHP?

PHP: What does 'final class' and 'final function' (final method) mean in PHP?

If a class is defined as final class then no other class can extend it. I.e. the following would result in an error:

  1.         final class DontExtendMe {}
  2.         class ThisCausesAnError extends DontExtendMe {}

A final method (final function ...) means that any subclasses of it's class cannot be overridden.

webdevetc profile pic
webdevetc

I am a 29 year old backend web developer from London, mostly focusing on PHP and Laravel lately. This (webdevetc.com) is my blog where I write about some web development topics (PHP, Laravel, Javascript, and some server stuff). contact me here.



More...


Comments and discussion about What does 'final class' and 'final function' (final method) mean in PHP?

Found this interesting? Maybe you want to read some more in this series?

Or see other topics in the PHP language

Or see other languages/frameworks:
PHP Laravel Composer Apache CentOS and Linux Stuff WordPress General Webdev and Programming Stuff JavaScript
Or see random questions

What is the difference between reference and primitive data types types in Javascript?

How to review blog posts (written by other users) before they get published on your WordPress blog?

What are generators in PHP, and how do they compare to arrays?

How to run an artisan command from a controller

How to replace values in a string, in JS

What is an example of an object literal?

What is the difference between var, let and const in Javascript?

How to install jpegtran for Linux CentOS

How to find out which php.ini file PHP is using?

How to Extract Query String (from a URL) Into an Associative Array in PHP