Csrf.php

<?php
/**
 * A view Helper from CSRF
 * 
 * Prints the Token
 * 
 * @author Javier Sanchez
 */
class Zend_View_Helper_Csrf extends Zend_View_Helper_Abstract {

	public function CsrfViewHelper()
	{
		return $this;
	}
	
	public function getToken()
	{
		$session = new Zend_Session_Namespace('CsrfProtect');
		
		if (!isset($session->key)) {
			throw new RuntimeException('Token non-existent');
		} else {
			return $session->key;
		}
		
	}

}