How can I modify a field using PHP code in "rewrite results"?

Question

Drupal 9.49

PHP 8.0

Views 9.49

I am returning the title field in a view. The title being returned is "XYZ Aberdeen".

I want it to simply return "Aberdeen"

When I click on "Content: Title" and then "Rewrite results" I was hoping I could simply use the following code:

<?php print str_replace('XYZ', '', {{ title }}); ?>

Can anyone tell me how to do this please?

Answer 1

Instead of PHP you use Twig now in "Rewrite Results" of a Views field:

{{ title|replace({'XYZ': ''}) }}

Using Twig filters often results in double escaping, so that you see the HTML code of special characters on the screen. A title field shouldn't contain HTML markup, but an ampersand is quite common. Then you can avoid the double escaping by rolling back the first escape in the replace filter:

{{ title|replace({'XYZ': '', '&': '&'}) }}

Answer 2

Adding a php code this way is discouraged as it might lead to security issues. One option is to use a hook. Here's an example code how to do this in your *.theme file for example

/**
 * Implements hook_views_pre_render().
 */
function your_module_views_pre_render(\Drupal\views\ViewExecutable $view) {
   // Specify the view ID and display ID where you want to override the field title.
   if ('your_view_id' === $view->id() && 'your_display_id' === $view->current_display) {
    // Specify the field name whose title you want to override.
    $field_name = 'your_field_name';

    // Specify the new field title.
    $new_title = 'New Field Title';

    // Loop through each result and modify the field title.
    foreach ($view->result as $key => $result) {
      $view->result[$key]->_entity->{$field_name}->getFieldDefinition()->setLabel($new_title);
    }
  }
}

If you don't need to do this for all results, but in general for the view, you can skip the loop and instead target your field directly. More information on the hook's documentation here

Answer 3

one of the way is to create a twig template for your field. And use a replace filter inside this template.