{"id":30775,"date":"2024-02-22T17:33:25","date_gmt":"2023-12-15T03:40:17","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8php%e5%ae%9e%e7%8e%b0ngram%ef%bc%88%e5%8f%8c%e5%ad%97%e6%a8%a1%ef%bc%89\/"},"modified":"2025-08-12T20:46:05","modified_gmt":"2025-08-12T12:46:05","slug":"%e7%94%a8php%e5%ae%9e%e7%8e%b0ngram%ef%bc%88%e5%8f%8c%e5%ad%97%e6%a8%a1%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8php%e5%ae%9e%e7%8e%b0ngram%ef%bc%88%e5%8f%8c%e5%ad%97%e6%a8%a1%ef%bc%89\/","title":{"rendered":"\u7528PHP\u5b9e\u73b0Ngram\uff08\u53cc\u5b57\u6a21\uff09"},"content":{"rendered":"<h1>\u7ecf\u8fc7\u3002<\/h1>\n<p>\u6211\u60f3\u5728MySQL\u4e2d\u8fdb\u884c\u5168\u6587\u641c\u7d22\uff0c\u6240\u4ee5\u6211\u67e5\u627e\u4e86\u4ee5\u4e0b\u7684\u6587\u7ae0\u5e76\u53d1\u73b0\u9700\u8981\u5b9e\u73b0Ngram\uff08\u4e8c\u5143\u6a21\u578b\uff09\uff0c\u6240\u4ee5\u6211\u5c1d\u8bd5\u7740\u521b\u5efa\u4e86\u5b83\u3002<\/p>\n<p>\u542c\u8bf4MYSQL5.7\u53ca\u66f4\u9ad8\u7248\u672c\u5df2\u7ecf\u81ea\u5e26\u4e86\u65e5\u672c\u8bed\u7684Ngram\u89e3\u6790\u5668\uff0c\u6240\u4ee5\u5e94\u8be5\u9009\u62e9MYSQL5.7\u53ca\u66f4\u9ad8\u7248\u672c\u3002<br \/>\n\u4f46\u662f\u4f3c\u4e4e\u4e5f\u5b58\u5728\u8fd9\u6837\u7684\u4e00\u4e2a\u884c\u4e3a\u3002<\/p>\n<\/p>\n<p>\u4ee5\u4e0b\u7684\u8bbe\u7f6e\u5f88\u5bb9\u6613\u88ab\u5fd8\u8bb0\uff0c\u8bf7\u6ce8\u610f\u3002<\/p>\n<pre class=\"post-pre\"><code>[mysqld]\r\ninnodb_ft_min_token_size=2\r\n<\/code><\/pre>\n<h1>\u603b\u7ed3<\/h1>\n<p>\u6211\u5011\u9810\u8a08\u5728CMS\u4e2d\uff0c\u9664\u4e86\u5132\u5b58HTML\u4e4b\u5916\uff0c\u9084\u6703\u6e96\u5099\u4e00\u500b\u5c08\u4f9b\u641c\u5c0b\u4f7f\u7528\u7684\u6b04\u4f4d\uff0c\u4f5c\u70ba\u641c\u5c0b\u5b57\u4e32\u7684\u4f7f\u7528\u3002<\/p>\n<h1>\u4ee3\u7801 (Mandarin Chinese translation of &#8220;code&#8221;)<\/h1>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">Bigram<\/span>\r\n<span class=\"p\">{<\/span>\r\n    <span class=\"cd\">\/**\r\n     * \u6587\u5b57\u5217\u3092\u767b\u9332\u30fb\u691c\u7d22\u7528\u30d0\u30a4\u30b0\u30e9\u30e0\u306b\u5909\u63db\u3059\u308b\r\n     *\r\n     * @param string|null $string\r\n     * @param boolean $for_search_flag\r\n     *     false:DB\u4fdd\u5b58\u6642\u306b\u4f7f\u7528\u3059\u308b\u5909\u63db\u65b9\u6cd5 \u3042\u3044\u3046\u2192\u3042\u3044 \u3044\u3046 \u3046\r\n     *     true:\u691c\u7d22\u6642\u306b\u4f7f\u7528\u3059\u308b\u5909\u63db\u65b9\u6cd5 \u3042\u3044\u3046\u2192\u3042\u3044 \u3044\u3046\u30001\u6587\u5b57\u306e\u5834\u5408\u306f\u7a7a\u6587\u5b57\u3092\u8fd4\u3057\u307e\u3059\uff08\u305d\u3082\u305d\u30822\u6587\u5b57\u4ee5\u4e0a\u3067\u691c\u7d22\u3057\u306a\u3044\u3068\u30d2\u30c3\u30c8\u3057\u306a\u3044\u306e\u3067\u69cb\u308f\u306a\u3044\uff09\r\n     * @return string|null\r\n     *\/<\/span>\r\n    <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">convert_to_bigram<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span> <span class=\"nv\">$string<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"p\">,<\/span> <span class=\"kt\">bool<\/span> <span class=\"nv\">$for_search_flag<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">false<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nb\">is_null<\/span><span class=\"p\">(<\/span><span class=\"nv\">$string<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"p\">{<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"nv\">$string<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">str_replace<\/span><span class=\"p\">(<\/span><span class=\"k\">array<\/span><span class=\"p\">(<\/span><span class=\"s2\">\" \"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"\u3000\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"<\/span><span class=\"se\">\\r<\/span><span class=\"s2\">\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"<\/span><span class=\"se\">\\t<\/span><span class=\"s2\">\"<\/span><span class=\"p\">),<\/span> <span class=\"s2\">\"\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$string<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nv\">$string<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">strip_tags<\/span><span class=\"p\">(<\/span><span class=\"nv\">$string<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nv\">$character_list<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">preg_split<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\/\/u\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$string<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"no\">PREG_SPLIT_NO_EMPTY<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/ 1\u6587\u5b57\u3065\u3064\u914d\u5217\u306b\u5206\u3051\u308b<\/span>\r\n\r\n        <span class=\"nv\">$bigram<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">''<\/span><span class=\"p\">;<\/span><span class=\"c1\">\/\/ \u30d0\u30a4\u30b0\u30e9\u30e0<\/span>\r\n\r\n        <span class=\"nv\">$glue<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">''<\/span><span class=\"p\">;<\/span>\r\n        <span class=\"k\">foreach<\/span> <span class=\"p\">(<\/span><span class=\"nv\">$character_list<\/span> <span class=\"k\">as<\/span> <span class=\"nv\">$index<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nv\">$character<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"k\">isset<\/span><span class=\"p\">(<\/span><span class=\"nv\">$character_list<\/span><span class=\"p\">[<\/span><span class=\"nv\">$index<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">1<\/span><span class=\"p\">]))<\/span>\r\n            <span class=\"p\">{<\/span>\r\n                <span class=\"nv\">$bigram<\/span> <span class=\"mf\">.<\/span><span class=\"o\">=<\/span> <span class=\"nv\">$glue<\/span><span class=\"mf\">.<\/span><span class=\"nv\">$character<\/span><span class=\"mf\">.<\/span><span class=\"nv\">$character_list<\/span><span class=\"p\">[<\/span><span class=\"nv\">$index<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">1<\/span><span class=\"p\">];<\/span>\r\n            <span class=\"p\">}<\/span>\r\n            <span class=\"k\">else<\/span>\r\n            <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nv\">$for_search_flag<\/span> <span class=\"o\">===<\/span> <span class=\"kc\">false<\/span><span class=\"p\">)<\/span>\r\n                <span class=\"p\">{<\/span>\r\n                    <span class=\"nv\">$bigram<\/span> <span class=\"mf\">.<\/span><span class=\"o\">=<\/span> <span class=\"nv\">$glue<\/span><span class=\"mf\">.<\/span><span class=\"nv\">$character<\/span><span class=\"p\">;<\/span>\r\n                <span class=\"p\">}<\/span>\r\n            <span class=\"p\">}<\/span>\r\n             <span class=\"nv\">$glue<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">' '<\/span><span class=\"p\">;<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"k\">return<\/span> <span class=\"nv\">$bigram<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"nv\">$string<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"&lt;p&gt;&lt;div&gt;&lt;a&gt;\u3042 \u3044<\/span><span class=\"se\">\\t<\/span><span class=\"s2\"> \u3046\u3000\u3048<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\u304a\u304b&lt;\/a&gt;&lt;\/div&gt;&lt;\/p&gt;\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$bigram<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Bigram<\/span><span class=\"p\">();<\/span>\r\n<span class=\"nb\">var_dump<\/span><span class=\"p\">(<\/span><span class=\"nv\">$bigram<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">convert_to_bigram<\/span><span class=\"p\">(<\/span><span class=\"nv\">$string<\/span><span class=\"p\">));<\/span>\r\n<span class=\"nb\">var_dump<\/span><span class=\"p\">(<\/span><span class=\"nv\">$bigram<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">convert_to_bigram<\/span><span class=\"p\">(<\/span><span class=\"nv\">$string<\/span><span class=\"p\">,<\/span> <span class=\"kc\">true<\/span><span class=\"p\">));<\/span>\r\n<\/code><\/pre>\n<h1>\u7ed3\u679c<\/h1>\n<pre class=\"post-pre\"><code>string(38) \"\u3042\u3044 \u3044\u3046 \u3046\u3048 \u3048\u304a \u304a\u304b \u304b\"\r\nstring(34) \"\u3042\u3044 \u3044\u3046 \u3046\u3048 \u3048\u304a \u304a\u304b\"\r\n<\/code><\/pre>\n<h1>\u786e\u8ba4<\/h1>\n<\/p>\n<h1>\u5176\u4ed6<\/h1>\n<p>\u56e0\u4e3a\u5728\u641c\u7d22\u65f6\u9700\u8981\u4f7f\u7528\u5230\u4e8c\u5143\u7ec4\uff0c\u6240\u4ee5\u6211\u4eec\u6839\u636efor_search_flag\u7b5b\u9009\u4e86\u7ed3\u679c\u3002<br \/>\n\uff08\u6ce8\uff1a\u5728\u4f7f\u7528\u4e8c\u5143\u7ec4\u8fdb\u884c\u641c\u7d22\u65f6\uff0c\u8bf7\u4f7f\u7528\u81f3\u5c11\u4e24\u4e2a\u5b57\u7b26\u8fdb\u884c\u641c\u7d22\u3002\uff09<\/p>\n<p>\u5728\u6570\u636e\u5e93\u4e2d\u641c\u7d22\u4ece\u300c\u3042\u3044\u3046\u3048\u304a\u304b\u300d\u5230\u300c\u3046\u3048\u304a\u300d\u7684\u793a\u4f8b\u3002<br \/>\n\u5728\u6570\u636e\u5e93\u4e2d\u5b58\u50a8\u7684\u662f\u300c\u3042\u3044 \u3044\u3046 \u3046\u3048 \u3048\u304a \u304a\u304b \u304b\u300d\u3002<\/p>\n<pre class=\"post-pre\"><code>match(`bigram`) against('+\"\u3046\u3048 \u3048\u304a\" in boolean mode')\r\n\u3067\u306f\u30d2\u30c3\u30c8\u3059\u308b\u304c\r\n\r\nmatch(`bigram`) against('+\"\u3046\u3048 \u3048\u304a \u304a\" in boolean mode')\r\n\u3060\u3068\u30d2\u30c3\u30c8\u3057\u306a\u3044\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u7ecf\u8fc7\u3002 \u6211\u60f3\u5728MySQL\u4e2d\u8fdb\u884c\u5168\u6587\u641c\u7d22\uff0c\u6240\u4ee5\u6211\u67e5\u627e\u4e86\u4ee5\u4e0b\u7684\u6587\u7ae0\u5e76\u53d1\u73b0\u9700\u8981\u5b9e\u73b0Ngram\uff08\u4e8c\u5143\u6a21\u578b\uff09\uff0c\u6240\u4ee5\u6211\u5c1d\u8bd5 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30775","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7528PHP\u5b9e\u73b0Ngram\uff08\u53cc\u5b57\u6a21\uff09 - Blog - 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property=\"article:published_time\" content=\"2023-12-15T03:40:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T12:46:05+00:00\" \/>\n<meta name=\"author\" content=\"\u9038, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u9038, \u79d1\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" 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