PHP中文分词，自动获取关键词

<?php
header("Content-Type:text/html; charset=utf-8");
define('APP_ROOT', str_replace('\\', '/', dirname(__FILE__)));

$test = '真怕有一天我们再次成为交叉线，我想那时就再也不可能回归了，快乐永远是拿痛苦做代价，你现在多幸福，多快乐，你以后就会越伤心越难过，不想发生!';

function get_tags_arr($title)
    {
        require(APP_ROOT.'/pscws4.class.php');
        $pscws = new PSCWS4();
        $pscws->set_dict(APP_ROOT.'/scws/dict.utf8.xdb');
        $pscws->set_rule(APP_ROOT.'/scws/rules.utf8.ini');
        $pscws->set_ignore(true);
        $pscws->send_text($title);
        $words = $pscws->get_tops(5);
        $tags = array();
        foreach ($words as $val) {
            $tags[] = $val['word'];
        }
        $pscws->close();
        return $tags;
}

print_r(get_tags_arr($test));

function get_keywords_str($content){
    require(APP_ROOT.'/phpanalysis.class.php');
    PhpAnalysis::$loadInit = false;
    $pa = new PhpAnalysis('utf-8', 'utf-8', false);
    $pa->LoadDict();
    $pa->SetSource($content);
    $pa->StartAnalysis( false );
    $tags = $pa->GetFinallyResult();
    return $tags;
}

print(get_keywords_str($test));

转：http://www.thinkphp.cn/code/42.html

相关：

http://www.penglig.com/post-147.html
http://blog.csdn.net/pzp_118/article/details/8949192