How to get a url parameter in Magento controller?

Question

Is there a Magento function to get the value of \"id\" from this url:

http://example.com/path/action/id/123

I know I can split the url on \"/\" to get the va

Answer 1

Magento's default routing algorithm uses three part URLs.

http://example.com/front-name/controller-name/action-method

So when you call

http://example.com/path/action/id/123

The word path is your front name, action is your controller name, and id is your action method. After these three methods, you can use getParam to grab a key/value pair

http://example.com/path/action/id/foo/123

//in a controller
var_dump($this->getRequest()->getParam('foo'));

You may also use the getParams method to grab an array of parameters

$this->getRequest()->getParams()