core-bundle/src/Resources/contao/classes/DataContainer.php
public function help($strClass='')
	{
		$return = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['label'][1];

		if (!Config::get('showHelp') || $GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['inputType'] == 'password' || $return == '')
		{
			return '';
		}

		return '
  <p class="tl_help tl_tip' . $strClass . '">'.$return.'</p>';
	}
public function help($strClass='')
	{
		$return = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['label'][1];

		if (!Config::get('showHelp') || $GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['inputType'] == 'password' || $return == '')
		{
			return '';
		}

		return '
  <p class="tl_help tl_tip' . $strClass . '">'.$return.'</p>';
	}
Return the field explanation as HTML string

@param string $strClass

@return string