301 mass wordpress redirect when changing permalinks?

Question

WordPress

Hello, please tell me how to make a mass redirect when changing permalinks in WP. Previously, permalinks were of such an arbitrary type /%category%/%postname%.html, now I want them to be of this type /%category%/%postname%/, since some plugins do not work with the old type of permalinks. I would really appreciate an answer, thanks a lot.

Answer 1

Make a backup of the site with the database just in case. Then just change the look of the permalinks. If the wp redirect itself will not do, then use, for example, such a script

$h = $_SERVER['REQUEST_URI'];
 if (strpos($h,'.html') > 0) {
  $h = str_replace('.html','',$h);
  header("HTTP/1.1 301 Moved Permanently"); 
  header("Location: http://www.host.ru".$h); 
  exit();
 }

www.host.ru replace with your domain.