42 lines
869 B
PHP
42 lines
869 B
PHP
<?php
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/**
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* @auther: xxf
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* Date: 2019/8/19
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* Time: 11:04
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*/
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namespace app\common\services\wordanalysis;
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/**
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* 中文分词提取关键字
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*/
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class Analysis
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{
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/**
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* Notes:关键字提取
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* @auther: xxf
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* Date: 2019/8/19
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* Time: 11:09
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* @param string $content
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* @param int $num 获取数量
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* @return string
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*/
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public static function getKeywords($content = "",$num = 3) {
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if (empty ( $content )) {
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return '';
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}
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require_once 'phpanalysis.class.php';
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PhpAnalysis::$loadInit = false;
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$pa = new PhpAnalysis( 'utf-8', 'utf-8', false );
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$pa->LoadDict ();
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$pa->SetSource ($content);
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$pa->StartAnalysis ( true );
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$tags = $pa->GetFinallyKeywords ($num); // 获取文章中的n个关键字
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return $tags;//返回关键字
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}
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} |