I want to make a module which will add some attributes in an anchor tag, whether the user adds in CKEditor or it is from Drupal menu system, before rendering it to the browser.

I can do it through jQuery with $('a').attr('data-anchor', 'arial');, but is there any way to do it through a module?

  • I think you mean through PHP? Because you can add your jQuery to your module and make file.js load on every page or on specific pages. – No Sssweat Jan 22 '17 at 8:46
  • Yes, I want to do through PHP because jQuery may increase the rendering time. – Akash Jain Jan 22 '17 at 8:50

You can do it using hook_link_alter

 * Implements hook_link_alter().
function mymodule_link_alter(&$variables) {

    $variables['options']['attributes'] = array('data-anchor' => 'arial');

  • Thanks for your answer but I think this might not work in my case. I want to alter all anchor tag whether the user added through CKEditor or rendering through a block like <a href="example.com">Hello<./a>. I don't think this hook will call for anchor tag that defined in content. – Akash Jain Jan 22 '17 at 9:26
  • After testing, yes that's correct, this does not work with CKEditor. I would stick to the jQuery method, a few lines of jQuery will not slow you down. – No Sssweat Jan 22 '17 at 9:41
  • 2
    @AkashJain, that's a different question. You need a text filter. See drupal.org/docs/8/api/filter-api/overview. The last link on this page has a good tutorial. – 4k4 Jan 22 '17 at 9:46
  • @4k4 is correct, even if you manually type in CKEditor <a href="/node/1" data-anchor="arial">link</a> the data-anchor="arial" part gets filtered out, removed. So I guess you need to create a text filter so it allows it. – No Sssweat Jan 22 '17 at 10:06
  • 2
    Yes, if you want to add attributes in a text filter you can use the DOM structure of the field content, see drupal.stackexchange.com/questions/208445/… – 4k4 Jan 22 '17 at 10:38

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