I want to check if do_action('some_hook') in WordPress returns/echoes any result for a specific post. I've tried using has_action('some_hook') but it only checks if 'some_hook' has any registered handler at global level, it does not check if a specific post has any result for that hook. Can anybody please tell me how to achieve what I want?

  • 1
    What exactly do you mean? actions (in contrast to filters) should not have any result (read: ouput/return/..) – kero Feb 4 '19 at 17:10
  • do_action() does echo the result, provided some some function is hooked into it via add_action(). I'm not sure I understand what you meant? – Faisal Khurshid Feb 4 '19 at 17:13
  • You're right, I was thinking in the wrong direction – kero Feb 4 '19 at 17:17

One possible way could be to use PHP's output buffering via ob_start() like so


$content = ob_get_contents();

if (empty($content)) {
    // no output generated
} else {
    // had some output
| improve this answer | |
  • 1
    Thanks, I actually tried this method before but it was not working. it works now! – Faisal Khurshid Feb 4 '19 at 17:38

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