silverstripe-framework/docs/en/02_Developer_Guides/05_Extending/index.md

title: Extending SilverStripe
summary: Understand the ways to modify the built-in functionality through Extensions, Subclassing and Dependency Injection.
introduction: SilverStripe is easily extensible to meet custom application requirements. This guide covers the wide range of API's to modify built-in functionality and make your own code easily extensible.

No two applications are ever going to be the same and SilverStripe is built with this in mind. The core framework 
includes common functionality and default behaviors easily complemented with add-ons such as modules, widgets and 
themes. 

SilverStripe includes a myriad of extension API's such as *Extension Hooks* and support for programming patterns 
such as *Dependency Injection*. Allowing developers to tailor the framework to their needs without modifying the core 
framework.

[CHILDREN Exclude="How_Tos"]

## How to's

[CHILDREN Folder="How_Tos"]
Add introduction files to each of the sections 2014-09-21 02:07:58 +02:00			`title: Extending SilverStripe`
			`summary: Understand the ways to modify the built-in functionality through Extensions, Subclassing and Dependency Injection.`
Review and clean up of extending section 2014-10-22 12:47:56 +02:00			`introduction: SilverStripe is easily extensible to meet custom application requirements. This guide covers the wide range of API's to modify built-in functionality and make your own code easily extensible.`
Add introduction files to each of the sections 2014-09-21 02:07:58 +02:00
Review and clean up of extending section 2014-10-22 12:47:56 +02:00			`No two applications are ever going to be the same and SilverStripe is built with this in mind. The core framework`
			`includes common functionality and default behaviors easily complemented with add-ons such as modules, widgets and`
			`themes.`
Add introduction files to each of the sections 2014-09-21 02:07:58 +02:00
Review and clean up of extending section 2014-10-22 12:47:56 +02:00			`SilverStripe includes a myriad of extension API's such as Extension Hooks and support for programming patterns`
Update index.md (#4020) MINOR: wording correction 2016-09-29 02:21:17 +02:00			`such as Dependency Injection. Allowing developers to tailor the framework to their needs without modifying the core`
Review and clean up of extending section 2014-10-22 12:47:56 +02:00			`framework.`
Add introduction files to each of the sections 2014-09-21 02:07:58 +02:00
Review and clean up of extending section 2014-10-22 12:47:56 +02:00			`[CHILDREN Exclude="How_Tos"]`

			`## How to's`

Update index.md (#4020) MINOR: wording correction 2016-09-29 02:21:17 +02:00			`[CHILDREN Folder="How_Tos"]`