private function _getHelper($helper)
  {
    $instance = null;
    foreach ($this->_prefixes as $prefix) {
      $className = $prefix . "\\" . $helper;
      if (Loader::loadClass($className)) {
        if (is_subclass_of($className, __NAMESPACE__ . "\\Helper_Interface")) {
          $instance = new $className();
          /* @var $instance Helper_Interface */
          $instance->setSubject($this->_subject);
        }
        break;
      }
    }
    return $instance;
  }
private function _getHelper($helper)
  {
    $instance = null;
    foreach ($this->_prefixes as $prefix) {
      $className = $prefix . "\\" . $helper;
      if (Loader::loadClass($className)) {
        if (is_subclass_of($className, __NAMESPACE__ . "\\Helper_Interface")) {
          $instance = new $className();
          /* @var $instance Helper_Interface */
          $instance->setSubject($this->_subject);
        }
        break;
      }
    }
    return $instance;
  }
private function _getHelper ( $ helper ) { $ instance = null ; foreach ( $ this -> _prefixes as $ prefix ) { $ className = $ prefix . "\\" . $ helper ; if ( Loader :: loadClass ( $ className ) ) { if ( is_subclass_of ( $ className , __NAMESPACE__ . "\\Helper_Interface" ) ) { $ instance = new $ className ( ) ; /* @var $instance Helper_Interface */ $ instance -> setSubject ( $ this -> _subject ) ; } break ; } } return $ instance ; }
Creates a new helper's instance

@param string $helper Name

@return Helper_Interface
Creates a new helper s instance