function site_verify_page_attachments in Site verification 8

Implements hook_page_attachments().

Add a meta tag to the HEAD.

File

./site_verify.module, line 53

Used to demonstrate the possibilities of routing in Drupal 8.

Code

function site_verify_page_attachments(array &$page) {
  if (\Drupal::service('path.matcher')
    ->isFrontPage()) {
    $meta_tags = \Drupal::database()
      ->select('site_verify', 'site_verify')
      ->fields('site_verify', [
      'svid',
      'meta',
    ])
      ->condition('meta', '', '<>')
      ->execute()
      ->fetchAllKeyed();
    foreach ($meta_tags as $svid => $meta_tag) {
      preg_match('/name="(.*)" content/', $meta_tag, $name);
      preg_match('/content="(.*)"/', $meta_tag, $content);
      $data = [
        '#type' => 'html_tag',
        '#tag' => 'meta',
        '#attributes' => [
          'name' => $name[1],
          'content' => $content[1],
        ],
      ];
      $page['#attached']['html_head'][] = [
        $data,
        'site_verify:' . $svid,
      ];
    }
  }
}