php – Take away content material hyperlinks (inside and exterior), however exclude submit at particular classes

    add_filter('the_content', 'removelink_content',1);

operate removelink_content($content material="")

    preg_match_all("#(.*?)#i",$content material, $matches);
    $num = depend($matches[0]);for($i = 0;$i < $num;$i++)
        $content material = str_replace($matches[0][$i] , $matches[2][$i] , $content material);
    
    return $content material;

It really works, however I want to exclude some classes. That's, that the code works solely on posts that aren't in an excluded class.