What is the method for php to use PHPAnalysis to extract Chinese word segmentation of keywords?

This article will introduce to you how PHP uses PHPAnalysis to extract Chinese word segmentation of keywords. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Requirements: When doing SEO keywords, you need to extract keywords from the title or text

1. PHPAnalysis download address

http://www.phpbone.com/phpanalysis/#api

The original download address cannot be opened and has been uploaded to github

https://github.com/ feixuekeji/PHPAnalysis

After downloading, unzip and place it in the extend directory (tp5 is used as an example, other directories are also acceptable)

2. Encapsulation

<?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 &#39;&#39;;
        }
 
        require_once &#39;phpanalysis.class.php&#39;;
 
 
        \PhpAnalysis::$loadInit = false;
        $pa = new \PhpAnalysis ( &#39;utf-8&#39;, &#39;utf-8&#39;, 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
    }
 
}

Use

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

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