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<?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 strlen($string);
}
return mb_strlen($string, $encoding);
}
}