Magento - create a helper class

Question

I'm having trouble figuring out how to create a helper class with a function in it that's available to *.phtml files.

Can someone describe step by step how I can make the function prtHelloWorld() available to all my *.phtml files?

Answer 1

it's rather simple and you have to call your helper from template like this:

Mage::helper('yourmodule/yourclassfile')->prtHelloWorld();

Default helper class is Data and this defaults to Yourmodule/Helper/Data.php

Mage::helper('yourmodule')->prtHelloWorld();