if (is_file(FCPATH.'ThirdParty/WordAnalysis/phpanalysis.class.php')) {
    require_once FCPATH.'ThirdParty/WordAnalysis/phpanalysis.class.php';
    \PhpAnalysis::$loadInit = false;
    $pa = new \PhpAnalysis ( 'utf-8', 'utf-8', false );
    $pa->LoadDict ();
    $pa->SetSource ("传入参数");
    $pa->StartAnalysis ( true );

    $tags = $pa->GetFinallyKeywords (20);
    var_dump($tags);
}