php中文分词怎么获得评价关键词

发布网友发布时间：2022-04-06 09:50

共2个回答

懂视网时间：2022-04-06 14:11

需求：做SEO的keywords时，需要从标题或者正文里提取关键字

1.PHPAnalysis下载地址

https://github.com/feixuekeji/PHPAnalysis

下载后解压放到extend目录下（以tp5为例，其他目录也行）

企业微信截图_15929778033785.png

2.封装

<?php
/**
 * @auther: xxf
 * Date: 2019/8/19
 * Time: 11:04
 */

namespace WordAnalysis;

/**
 * 中文分词提取关键字
 */
class Analysis
{
 /**
 * Notes:关键字提取
 * @auther: xxf
 * Date: 2019/8/19
 * Time: 11:09
 * @param string $content
 * @param int $num 获取数量
 * @return string
 */
 public static function getKeywords($content = "",$num = 3) {
 if (empty ( $content )) {
  return '';
 }

 require_once 'phpanalysis.class.php';


 PhpAnalysis::$loadInit = false;
 $pa = new PhpAnalysis ( 'utf-8', 'utf-8', false );
 $pa->LoadDict ();
 $pa->SetSource ($content);
 $pa->StartAnalysis ( true );

 $tags = $pa->GetFinallyKeywords ($num); // 获取文章中的n个关键字
 return $tags;//返回关键字
 }

}

3.使用

$data['seo']['keyword'] = Analysis::getKeywords($article_info['title']);

更多相关技术文章，请访问PHP中文网！

热心网友时间：2022-04-06 11:19

代码如下:

<?php
header("Content-Type:text/html; charset=utf-8");
define('APP_ROOT', str_replace('\\', '/', dirname(__FILE__)));
$test = '这里是一段中文测试代码!';
function get_tags_arr($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));

php中文分词 怎么获得评价关键词

php中文分词怎么获得评价关键词