@alvina we know that and is good, but we want to add the Nofollow+noopener+noreferer atribute such other forums does.

This type of atrubute do not transfer any authority to the external linking site... so this way we can avoid SPAM on our forum site of SEO's trying to gain authority to their sites by puting the link in ours..

Please see the atatched screenshot to undertand better what we are talking about.

Kind regards

@alvina I am sorry but this is not true. As you can see in the code (see attached file). So how to set all internal links as "nofollow" ?

@manuo84,

Insert the below code in wp-content/plugins/wpforo/wpf-includes/functions.php

Find

function wpforo_nofollow(

and replace the content of the code with the below code(the content start with {  )

{
   $ret = $match[0];
   if( apply_filters( 'wpforo_external_link_nofollow', true ) ){
      $dofollow          = array_filter( array_map( "trim", explode( "\n", WPF()->tools_misc['dofollow'] ) ) );
      $request_uri_parse = parse_url( wpforo_get_request_uri() );
      $main_host         = preg_replace( '#^.*?([^\.]+?\.[^\.]+?)$#isu', '$1', $request_uri_parse['host'] );
      $link_url          = parse_url( $match[1] );
        if( strpos($match[1], $main_host) === false && !(!empty($dofollow) && !empty($link_url['host']) && in_array($link_url['host'], $dofollow)) ){
           $ret = preg_replace_callback(
                '#\srel=[\'\"]([^\'\"]*?)[\'\"]#iu',
                function($m){
                    $rels = array_filter( preg_split('#\s#u', $m[1]) );
                    $rels = array_merge( array('nofollow'), $rels );
                    return sprintf('rel="%1$s"', implode(' ', $rels));
                },
              $match[0],
                1,
                $count
            );
            if( !$count ) $ret = str_replace('>', ' rel="nofollow">', $match[0]);
        }
    }
    return $ret;
}