I would like to block certain keywords (multiple keywords, banned keywords like fuk, sit etc.) from searching on Wordpress blog and show/redirect visitor/member (searcher) to different page.

Used this code but it returned 500 internal server error:

    add_action('wp', 'check_search');
function check_search() {

    global $wp_query;

    if (!$s = get_search_query())
        return false;

    if preg_match('/^(word1|word2|word3)$/', $s)) {


How to fix and How to do the redirection?

  • It works for me if I fix the syntax error: if ( preg_match. Always turn on debugging during developing. – Max Yudin Dec 21 '18 at 11:57

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Browse other questions tagged or ask your own question.