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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\View\Helper;
use Zend\View\Exception;
/**
* Helper for retrieving the base path.
*/
class BasePath extends AbstractHelper
{
/**
* Base path
*
* @var string
*/
protected $basePath;
/**
* Returns site's base path, or file with base path prepended.
*
* $file is appended to the base path for simplicity.
*
* @param string|null $file
* @throws Exception\RuntimeException
* @return string
*/
public function __invoke($file = null)
{
if (null === $this->basePath) {
throw new Exception\RuntimeException('No base path provided');
}
if (null !== $file) {
$file = '/' . ltrim($file, '/');
}
return $this->basePath . $file;
}
/**
* Set the base path.
*
* @param string $basePath
* @return self
*/
public function setBasePath($basePath)
{
$this->basePath = rtrim($basePath, '/');
return $this;
}
}