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 are the SPL data structures

How to view all installed PHP modules?

How to generate an array for a dropdown (with ['key' => 'value']) suitable for a dropdown, from a Laravel collection of Eloquent objects?

How can you check if a variable is alphanum (alphanumeric, letters and numbers only) in PHP?

How to find the 2nd most common item in an array?

How to add and remove items to an array in JS?

What is the loop variable in a @foreach loop in Blade?

Point all requests to one PHP file

How to replace whitespace with a single space

What does PEAR stand for?