function removeUrl($string='', $replace_with='URL HIDDEN', $allowed_domains=null){
    $string = str_replace('....', '.', $string);
    $string = str_replace('...', '.', $string);
    $string = str_replace('..', '.', $string);
    $string = preg_replace('/(\d)\.([a-z]{2,3})/', '$1. $2', $string);
    $string = preg_replace_callback('@((https?://)?([-\w]+\.[-\w\.][^\/0-9\-]+)+\w(:\d+)?(/([-\w/_\.]*(\?\S+)?)?)*)@', function($match) use($replace_with, $allowed_domains){
        // Allowed domains
        if(strpos($match[0], '...') !== false){
            return $match[0];
        }
        // Return replaced string
        return ' ['.strtoupper($replace_with).'] ';
    }, $string);
    return $string;
}