//Create file: ctwigfilters.services.yml services: ctwigfilters.twig_extension: arguments: ['@renderer'] class: Drupal\ctwigfilters\TwigExtension\MyHumanize tags: - { name: twig.extension } //file: ctwigfilters/src/TwigExtension <?php /** * Created by PhpStorm. * User: Zhilevan * Date: 1/9/18 * Time: 23:38 */ namespace Drupal\ctwigfilters\TwigExtention; class MyHumanize extends \Twig_Extension { public function getFilters() { return [ new \Twig_SimpleFilter('myhumanize', array($this, 'myHumanize'))]; } public function getName() { return 'ctwigfilters.twig_extension'; } public static function myHumanize($string) { $str = trim(strtolower($str)); $str = preg_replace('/[^a-z0-9\s+]/', '', $str); $str = preg_replace('/\s+/', ' ', $str); $str = explode(' ', $str); $str = array_map('ucwords', $str); return implode(' ', $str); } } // in twig file {{ your-variable | myhumanize }}

drupal 8 twig filters

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