社群
學習
工具庫
AI工具
休閒
搜尋
繁体中文
目錄
PHP similar_text()、levenshtein()、lcs()支持中文汉字版，
首頁 後端開發 php教程 PHP similar_text()、levenshtein()、lcs()支持中文汉字版，_PHP教程

PHP similar_text()、levenshtein()、lcs()支持中文汉字版，_PHP教程

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Jul 13, 2016 am 10:16 AM
php text 中文 支援 漢字 版

PHP similar_text()、levenshtein()、lcs()支持中文汉字版，

PHP 原生的similar_text()函数、levenshtein()函数对中文汉字支持不好，我自己写了一个


similar_text()中文汉字版

<span> 1</span>     <?<span>php  
</span><span> 2</span>     <span>//</span><span>拆分字符串  </span>
<span> 3</span>     <span>function</span> split_str(<span>$str</span><span>) {  
</span><span> 4</span>       <span>preg_match_all</span>("/./u", <span>$str</span>, <span>$arr</span><span>);  
</span><span> 5</span>       <span>return</span> <span>$arr</span>[0<span>];  
</span><span> 6</span> <span>    }  
</span><span> 7</span>       
<span> 8</span>     <span>//</span><span>相似度检测  </span>
<span> 9</span>     <span>function</span> similar_text_cn(<span>$str1</span>, <span>$str2</span><span>) {  
</span><span>10</span>       <span>$arr_1</span> = <span>array_unique</span>(split_str(<span>$str1</span><span>));  
</span><span>11</span>       <span>$arr_2</span> = <span>array_unique</span>(split_str(<span>$str2</span><span>));  
</span><span>12</span>       <span>$similarity</span> = <span>count</span>(<span>$arr_2</span>) - <span>count</span>(<span>array_diff</span>(<span>$arr_2</span>, <span>$arr_1</span><span>));  
</span><span>13</span>         
<span>14</span>       <span>return</span> <span>$similarity</span><span>;  
</span><span>15</span>     }
登入後複製

levenshtein()中文汉字版

<span> 1</span>     <?<span>php  
</span><span> 2</span>     <span>//</span><span>拆分字符串  </span>
<span> 3</span>     <span>function</span> mbStringToArray(<span>$string</span>, <span>$encoding</span> = 'UTF-8'<span>) {  
</span><span> 4</span>         <span>$arrayResult</span> = <span>array</span><span>();  
</span><span> 5</span>       
<span> 6</span>         <span>while</span> (<span>$iLen</span> = mb_strlen(<span>$string</span>, <span>$encoding</span><span>)) {  
</span><span> 7</span>             <span>array_push</span>(<span>$arrayResult</span>, mb_substr(<span>$string</span>, 0, 1, <span>$encoding</span><span>));  
</span><span> 8</span>             <span>$string</span> = mb_substr(<span>$string</span>, 1, <span>$iLen</span>, <span>$encoding</span><span>);  
</span><span> 9</span> <span>        }  
</span><span>10</span>       
<span>11</span>         <span>return</span> <span>$arrayResult</span><span>;  
</span><span>12</span> <span>    }  
</span><span>13</span>       
<span>14</span>     <span>//</span><span>编辑距离  </span>
<span>15</span>     <span>function</span> levenshtein_cn(<span>$str1</span>, <span>$str2</span>, <span>$costReplace</span> = 1, <span>$encoding</span> = 'UTF-8'<span>) {  
</span><span>16</span>         <span>$count_same_letter</span> = 0<span>;  
</span><span>17</span>         <span>$d</span> = <span>array</span><span>();  
</span><span>18</span>       
<span>19</span>         <span>$mb_len1</span> = mb_strlen(<span>$str1</span>, <span>$encoding</span><span>);  
</span><span>20</span>         <span>$mb_len2</span> = mb_strlen(<span>$str2</span>, <span>$encoding</span><span>);  
</span><span>21</span>       
<span>22</span>         <span>$mb_str1</span> = mbStringToArray(<span>$str1</span>, <span>$encoding</span><span>);  
</span><span>23</span>         <span>$mb_str2</span> = mbStringToArray(<span>$str2</span>, <span>$encoding</span><span>);  
</span><span>24</span>       
<span>25</span>         <span>for</span> (<span>$i1</span> = 0; <span>$i1</span> <= <span>$mb_len1</span>; <span>$i1</span>++<span>) {  
</span><span>26</span>             <span>$d</span>[<span>$i1</span>] = <span>array</span><span>();  
</span><span>27</span>             <span>$d</span>[<span>$i1</span>][0] = <span>$i1</span><span>;  
</span><span>28</span> <span>        }  
</span><span>29</span>       
<span>30</span>         <span>for</span> (<span>$i2</span> = 0; <span>$i2</span> <= <span>$mb_len2</span>; <span>$i2</span>++<span>) {  
</span><span>31</span>             <span>$d</span>[0][<span>$i2</span>] = <span>$i2</span><span>;  
</span><span>32</span> <span>        }  
</span><span>33</span>       
<span>34</span>         <span>for</span> (<span>$i1</span> = 1; <span>$i1</span> <= <span>$mb_len1</span>; <span>$i1</span>++<span>) {  
</span><span>35</span>             <span>for</span> (<span>$i2</span> = 1; <span>$i2</span> <= <span>$mb_len2</span>; <span>$i2</span>++<span>) {  
</span><span>36</span>                 <span>//</span><span> $cost = ($str1[$i1 - 1] == $str2[$i2 - 1]) ? 0 : 1;  </span>
<span>37</span>                 <span>if</span> (<span>$mb_str1</span>[<span>$i1</span> - 1] === <span>$mb_str2</span>[<span>$i2</span> - 1<span>]) {  
</span><span>38</span>                     <span>$cost</span> = 0<span>;  
</span><span>39</span>                     <span>$count_same_letter</span>++<span>;  
</span><span>40</span>                 } <span>else</span><span> {  
</span><span>41</span>                     <span>$cost</span> = <span>$costReplace</span>; <span>//</span><span>替换  </span>
<span>42</span> <span>                }  
</span><span>43</span>       
<span>44</span>                 <span>$d</span>[<span>$i1</span>][<span>$i2</span>] = <span>min</span>(<span>$d</span>[<span>$i1</span> - 1][<span>$i2</span>] + 1, <span>//</span><span>插入  </span>
<span>45</span>                 <span>$d</span>[<span>$i1</span>][<span>$i2</span> - 1] + 1, <span>//</span><span>删除  </span>
<span>46</span>                 <span>$d</span>[<span>$i1</span> - 1][<span>$i2</span> - 1] + <span>$cost</span><span>);  
</span><span>47</span> <span>            }  
</span><span>48</span> <span>        }  
</span><span>49</span>       
<span>50</span>         <span>return</span> <span>$d</span>[<span>$mb_len1</span>][<span>$mb_len2</span><span>];  
</span><span>51</span>         <span>//</span><span>return array('distance' => $d[$mb_len1][$mb_len2], 'count_same_letter' => $count_same_letter);  </span>
<span>52</span>     }
登入後複製

最长公共子序列LCS()

<span> 1</span>         <?<span>php  
</span><span> 2</span>         <span>//</span><span>最长公共子序列英文版  </span>
<span> 3</span>         <span>function</span> LCS_en(<span>$str_1</span>, <span>$str_2</span><span>) {  
</span><span> 4</span>           <span>$len_1</span> = <span>strlen</span>(<span>$str_1</span><span>);  
</span><span> 5</span>           <span>$len_2</span> = <span>strlen</span>(<span>$str_2</span><span>);  
</span><span> 6</span>           <span>$len</span> = <span>$len_1</span> > <span>$len_2</span> ? <span>$len_1</span> : <span>$len_2</span><span>;  
</span><span> 7</span>           
<span> 8</span>           <span>$dp</span> = <span>array</span><span>();  
</span><span> 9</span>           <span>for</span> (<span>$i</span> = 0; <span>$i</span> <= <span>$len</span>; <span>$i</span>++<span>) {  
</span><span>10</span>             <span>$dp</span>[<span>$i</span>] = <span>array</span><span>();  
</span><span>11</span>             <span>$dp</span>[<span>$i</span>][0] = 0<span>;  
</span><span>12</span>             <span>$dp</span>[0][<span>$i</span>] = 0<span>;  
</span><span>13</span> <span>          }  
</span><span>14</span>           
<span>15</span>           <span>for</span> (<span>$i</span> = 1; <span>$i</span> <= <span>$len_1</span>; <span>$i</span>++<span>) {  
</span><span>16</span>             <span>for</span> (<span>$j</span> = 1; <span>$j</span> <= <span>$len_2</span>; <span>$j</span>++<span>) {  
</span><span>17</span>               <span>if</span> (<span>$str_1</span>[<span>$i</span> - 1] == <span>$str_2</span>[<span>$j</span> - 1<span>]) {  
</span><span>18</span>                 <span>$dp</span>[<span>$i</span>][<span>$j</span>] = <span>$dp</span>[<span>$i</span> - 1][<span>$j</span> - 1] + 1<span>;  
</span><span>19</span>               } <span>else</span><span> {  
</span><span>20</span>                 <span>$dp</span>[<span>$i</span>][<span>$j</span>] = <span>$dp</span>[<span>$i</span> - 1][<span>$j</span>] > <span>$dp</span>[<span>$i</span>][<span>$j</span> - 1] ? <span>$dp</span>[<span>$i</span> - 1][<span>$j</span>] : <span>$dp</span>[<span>$i</span>][<span>$j</span> - 1<span>];  
</span><span>21</span> <span>              }  
</span><span>22</span> <span>            }  
</span><span>23</span> <span>          }  
</span><span>24</span>           
<span>25</span>           <span>return</span> <span>$dp</span>[<span>$len_1</span>][<span>$len_2</span><span>];  
</span><span>26</span> <span>        }  
</span><span>27</span>           
<span>28</span>         <span>//</span><span>拆分字符串  </span>
<span>29</span>         <span>function</span> mbStringToArray(<span>$string</span>, <span>$encoding</span> = 'UTF-8'<span>) {  
</span><span>30</span>           <span>$arrayResult</span> = <span>array</span><span>();  
</span><span>31</span>           
<span>32</span>           <span>while</span> (<span>$iLen</span> = mb_strlen(<span>$string</span>, <span>$encoding</span><span>)) {  
</span><span>33</span>             <span>array_push</span>(<span>$arrayResult</span>, mb_substr(<span>$string</span>, 0, 1, <span>$encoding</span><span>));  
</span><span>34</span>             <span>$string</span> = mb_substr(<span>$string</span>, 1, <span>$iLen</span>, <span>$encoding</span><span>);  
</span><span>35</span> <span>          }  
</span><span>36</span>           
<span>37</span>           <span>return</span> <span>$arrayResult</span><span>;  
</span><span>38</span> <span>        }  
</span><span>39</span>           
<span>40</span>         <span>//</span><span>最长公共子序列中文版  </span>
<span>41</span>         <span>function</span> LCS_cn(<span>$str1</span>, <span>$str2</span>, <span>$encoding</span> = 'UTF-8'<span>) {  
</span><span>42</span>           <span>$mb_len1</span> = mb_strlen(<span>$str1</span>, <span>$encoding</span><span>);  
</span><span>43</span>           <span>$mb_len2</span> = mb_strlen(<span>$str2</span>, <span>$encoding</span><span>);  
</span><span>44</span>           
<span>45</span>           <span>$mb_str1</span> = mbStringToArray(<span>$str1</span>, <span>$encoding</span><span>);  
</span><span>46</span>           <span>$mb_str2</span> = mbStringToArray(<span>$str2</span>, <span>$encoding</span><span>);  
</span><span>47</span>           
<span>48</span>           <span>$len</span> = <span>$mb_len1</span> > <span>$mb_len2</span> ? <span>$mb_len1</span> : <span>$mb_len2</span><span>;  
</span><span>49</span>           
<span>50</span>           <span>$dp</span> = <span>array</span><span>();  
</span><span>51</span>           <span>for</span> (<span>$i</span> = 0; <span>$i</span> <= <span>$len</span>; <span>$i</span>++<span>) {  
</span><span>52</span>             <span>$dp</span>[<span>$i</span>] = <span>array</span><span>();  
</span><span>53</span>             <span>$dp</span>[<span>$i</span>][0] = 0<span>;  
</span><span>54</span>             <span>$dp</span>[0][<span>$i</span>] = 0<span>;  
</span><span>55</span> <span>          }  
</span><span>56</span>           
<span>57</span>           <span>for</span> (<span>$i</span> = 1; <span>$i</span> <= <span>$mb_len1</span>; <span>$i</span>++<span>) {  
</span><span>58</span>             <span>for</span> (<span>$j</span> = 1; <span>$j</span> <= <span>$mb_len2</span>; <span>$j</span>++<span>) {  
</span><span>59</span>               <span>if</span> (<span>$mb_str1</span>[<span>$i</span> - 1] == <span>$mb_str2</span>[<span>$j</span> - 1<span>]) {  
</span><span>60</span>                 <span>$dp</span>[<span>$i</span>][<span>$j</span>] = <span>$dp</span>[<span>$i</span> - 1][<span>$j</span> - 1] + 1<span>;  
</span><span>61</span>               } <span>else</span><span> {  
</span><span>62</span>                 <span>$dp</span>[<span>$i</span>][<span>$j</span>] = <span>$dp</span>[<span>$i</span> - 1][<span>$j</span>] > <span>$dp</span>[<span>$i</span>][<span>$j</span> - 1] ? <span>$dp</span>[<span>$i</span> - 1][<span>$j</span>] : <span>$dp</span>[<span>$i</span>][<span>$j</span> - 1<span>];  
</span><span>63</span> <span>              }  
</span><span>64</span> <span>            }  
</span><span>65</span> <span>          }  
</span><span>66</span>           
<span>67</span>           <span>return</span> <span>$dp</span>[<span>$mb_len1</span>][<span>$mb_len2</span><span>];  
</span><span>68</span>         }
登入後複製

 

 

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/900268.htmlTechArticlePHP similar_text()、levenshtein()、lcs()支持中文汉字版， PHP 原生的similar_text()函数、levenshtein()函数对中文汉字支持不好，我自己写了一个 simila...
本網站聲明
本文內容由網友自願投稿，版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容，請聯絡admin@php.cn

熱AI工具

Undresser.AI Undress

Undresser.AI Undress

人工智慧驅動的應用程序，用於創建逼真的裸體照片

AI Clothes Remover

AI Clothes Remover

用於從照片中去除衣服的線上人工智慧工具。

Undress AI Tool

Undress AI Tool

免費脫衣圖片

Clothoff.io

Clothoff.io

AI脫衣器

Video Face Swap

Video Face Swap

使用我們完全免費的人工智慧換臉工具，輕鬆在任何影片中換臉！

顯示更多

熱門文章

<🎜>：種植花園 - 完整的突變指南
3 週前 By DDD
<🎜>：泡泡膠模擬器無窮大 - 如何獲取和使用皇家鑰匙
3 週前 By 尊渡假赌尊渡假赌尊渡假赌
如何修復KB5055612無法在Windows 10中安裝？
3 週前 By DDD
北端：融合系統，解釋
3 週前 By 尊渡假赌尊渡假赌尊渡假赌
Mandragora：巫婆樹的耳語 - 如何解鎖抓鉤
3 週前 By 尊渡假赌尊渡假赌尊渡假赌
顯示更多

熱工具

記事本++7.3.1

記事本++7.3.1

好用且免費的程式碼編輯器

SublimeText3漢化版

SublimeText3漢化版

中文版，非常好用

禪工作室 13.0.1

禪工作室 13.0.1

強大的PHP整合開發環境

Dreamweaver CS6

Dreamweaver CS6

視覺化網頁開發工具

SublimeText3 Mac版

SublimeText3 Mac版

神級程式碼編輯軟體(SublimeText3)

顯示更多

熱門話題

Java教學
1666
14
CakePHP 教程
1425
52
Laravel 教程
1325
25
PHP教程
1273
29
C# 教程
1252
24
顯示更多
Related knowledge
PHP和Python：比較兩種流行的編程語言 PHP和Python：比較兩種流行的編程語言 Apr 14, 2025 am 12:13 AM

PHP和Python各有優勢，選擇依據項目需求。 1.PHP適合web開發，尤其快速開發和維護網站。 2.Python適用於數據科學、機器學習和人工智能，語法簡潔，適合初學者。

PHP：網絡開發的關鍵語言 PHP：網絡開發的關鍵語言 Apr 13, 2025 am 12:08 AM

PHP是一種廣泛應用於服務器端的腳本語言，特別適合web開發。 1.PHP可以嵌入HTML，處理HTTP請求和響應，支持多種數據庫。 2.PHP用於生成動態網頁內容，處理表單數據，訪問數據庫等，具有強大的社區支持和開源資源。 3.PHP是解釋型語言，執行過程包括詞法分析、語法分析、編譯和執行。 4.PHP可以與MySQL結合用於用戶註冊系統等高級應用。 5.調試PHP時，可使用error_reporting()和var_dump()等函數。 6.優化PHP代碼可通過緩存機制、優化數據庫查詢和使用內置函數。 7

PHP行動：現實世界中的示例和應用程序 PHP行動：現實世界中的示例和應用程序 Apr 14, 2025 am 12:19 AM

PHP在電子商務、內容管理系統和API開發中廣泛應用。 1)電子商務：用於購物車功能和支付處理。 2)內容管理系統：用於動態內容生成和用戶管理。 3)API開發：用於RESTfulAPI開發和API安全性。通過性能優化和最佳實踐，PHP應用的效率和可維護性得以提升。

PHP與Python：了解差異 PHP與Python：了解差異 Apr 11, 2025 am 12:15 AM

PHP和Python各有優勢，選擇應基於項目需求。 1.PHP適合web開發，語法簡單，執行效率高。 2.Python適用於數據科學和機器學習，語法簡潔，庫豐富。

PHP的持久相關性：它還活著嗎？ PHP的持久相關性：它還活著嗎？ Apr 14, 2025 am 12:12 AM

PHP仍然具有活力，其在現代編程領域中依然佔據重要地位。 1)PHP的簡單易學和強大社區支持使其在Web開發中廣泛應用；2)其靈活性和穩定性使其在處理Web表單、數據庫操作和文件處理等方面表現出色；3)PHP不斷進化和優化，適用於初學者和經驗豐富的開發者。

PHP和Python：代碼示例和比較 PHP和Python：代碼示例和比較 Apr 15, 2025 am 12:07 AM

PHP和Python各有優劣，選擇取決於項目需求和個人偏好。 1.PHP適合快速開發和維護大型Web應用。 2.Python在數據科學和機器學習領域佔據主導地位。

PHP與其他語言：比較 PHP與其他語言：比較 Apr 13, 2025 am 12:19 AM

PHP適合web開發，特別是在快速開發和處理動態內容方面表現出色，但不擅長數據科學和企業級應用。與Python相比，PHP在web開發中更具優勢，但在數據科學領域不如Python；與Java相比，PHP在企業級應用中表現較差，但在web開發中更靈活；與JavaScript相比，PHP在後端開發中更簡潔，但在前端開發中不如JavaScript。

PHP和Python：解釋了不同的範例 PHP和Python：解釋了不同的範例 Apr 18, 2025 am 12:26 AM

PHP主要是過程式編程，但也支持面向對象編程（OOP）；Python支持多種範式，包括OOP、函數式和過程式編程。 PHP適合web開發，Python適用於多種應用，如數據分析和機器學習。

See all articles