# phpman > man > Plucene::Analysis::StopFilter

## NAME
    [Plucene::Analysis::StopFilter](https://www.chedong.com/phpMan.php/perldoc/Plucene%3A%3AAnalysis%3A%3AStopFilter/markdown) - the stop filter

## SYNOPSIS
            # isa [Plucene::Analysis::TokenFilter](https://www.chedong.com/phpMan.php/perldoc/Plucene%3A%3AAnalysis%3A%3ATokenFilter/markdown)

            my $next = $stop_filter->next;

## DESCRIPTION
    This removes stop words from a token stream.

    Instances of the StopFilter class are tokens filters that removes from the indexed text words of
    your choice. Typically this is used to filter out common words ('the', 'a' 'if' etc) that
    increase the overhead but add no value during searches.

## METHODS
  next
            my $next = $stop_filter->next;

    This returns the next input token whose term is not a stop word.