I've used drupal 8 with devel module. I want to change some values dynamically in views fields. So i tried to use theme_preprocess_views_view_fields(). When i tried to print variables using print_r(), kint() & dump(), no one print values.
/**
* Implement theme_preprocess_views_view_fields().
*/
function galip_preprocess_views_view_fields(&$variables) {
$view = $variables['view'];
print_r($variables['fields']);exit;
}
I've enabled debug mode true in services.yml file. But i can't get any variables. How can i get variables?