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Helper.php
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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); } }