<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Console\Helper;
/**
* Helper is the base class for all helper classes.
* @author Fabien Potencier <fabien@symfony.com>
abstract class Helper implements HelperInterface
{
protected $helperSet = null;
* Sets the helper set associated with this helper.
* @param HelperSet $helperSet A HelperSet instance
public function setHelperSet(HelperSet $helperSet = null)
$this->helperSet = $helperSet;
}
* Gets the helper set associated with this helper.
* @return HelperSet A HelperSet instance
public function getHelperSet()
return $this->helperSet;
* Returns the length of a string, using mb_strlen if it is available.
* @param string $string The string to check its length
* @return integer The length of the string
protected function strlen($string)
if (!function_exists('mb_strlen')) {
return strlen($string);
if (false === $encoding = mb_detect_encoding($string)) {
return mb_strlen($string, $encoding);