PHP製作中文全文搜尋不求人

Oct 16

PHP製作中文全文搜尋不求人。

(2 votes, average: 4 out of 5)

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前兩日發表過一份關於 ZEND FRAMEWORK 既SEARCH ENGINE 既文章
E篇係加強版.

這一次最大的分别是支援了中文分詞。上一個版本只支援英文。而這個版本支援了中文全文搜尋及中文分詞功能已把PROGRAM 簡化改得容易明白。

先說明資料夾內容

│ config.php 資料庫連接設定
│ index_file.php 製作索引的檔案
│ search.php 主程式，搜尋程式。
└─Zend <–主頁的CLASS LIBRARY

Config.php

index_file.php

<?phpinclude_once("config.php");
error_reporting(E_ALL|E_STRICT);set_include_path(‘.’ . PATH_SEPARATOR . ‘./Zend/’);
include "Zend/Loader.php";
Zend_Loader::loadClass(‘Zend_Search_Lucene’);
Zend_Loader::loadClass(‘Zend_Search_Lucene_Document’);
Zend_Loader::loadClass(‘Zend_Search_Lucene_Analysis_Analyzer_Common_Phpbean’);
Zend_Search_Lucene_Analysis_Analyzer::setDefault(new Zend_Search_Lucene_Analysis_Analyzer_Common_Phpbean());
if (function_exists("set_time_limit") && ! get_cfg_var(’safe_mode’)) {
set_time_limit(0);
}
$index = new Zend_Search_Lucene(‘index’, true);
$sql = "
SELECT `id` , `title` , `description`
FROM `data_table` "; //拿取需要索引的資料
mysql_query("set names ‘utf8′");
$result = mysql_query($sql);
while($row = mysql_fetch_assoc($result)) {
$url = ‘http://www.vincent.idv.hk/’ . $row[‘d’]; //網頁位置
$title = $row[‘title’];//主題
$description = $row["description"]; //描述
//儲存網頁的位置以在搜尋結果中連結.
$doc = new Zend_Search_Lucene_Document();//建立新的索引文件
$doc->addField(Zend_Search_Lucene_Field::UnIndexed(‘url’, $url));
$doc->addField(Zend_Search_Lucene_Field::Text(‘title’, $title,‘utf-8′));
$doc->addField(Zend_Search_Lucene_Field::Text(‘contents’, $description,
‘utf-8′));
$index->addDocument($doc); //把索引文件加到索引中
}
$index->commit();//提交，及保存索引

search.php

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<?php
include_once("config.php");
error_reporting(E_ALL|E_STRICT);
set_include_path(‘.’ . PATH_SEPARATOR . ‘./Zend/’);
include "Zend/Loader.php";
Zend_Loader::loadClass(‘Zend_Search_Lucene’);
Zend_Loader::loadClass(‘Zend_Search_Lucene_Exception’);
Zend_Loader::loadClass(‘Zend_Search_Lucene_Document’);
Zend_Loader::loadClass(‘Zend_Search_Lucene_Analysis_Analyzer_Common_Phpbean’);
Zend_Loader::loadClass(‘Zend_Search_Lucene_Search_QueryParser’);
Zend_Search_Lucene_Analysis_Analyzer::setDefault(
new Zend_Search_Lucene_Analysis_Analyzer_Common_Phpbean());$index = new Zend_Search_Lucene(‘index’);
$query = isset($_GET[‘query’]) ? $_GET[‘query’] : ”;
$query = trim($query);
if(strlen($query)>0){
try {
$query2 = Zend_Search_Lucene_Search_QueryParser::parse($query, "utf-8");
$hits = $index->find($query2);
}
catch (Zend_Search_Lucene_Exception $ex) {
$hits = array();
}
$numHits = count($hits);
}
?>
<form method="get" action="search.php">
<input type="text" name="query" value="<?= htmlSpecialChars($query) ?>" />
<input type="submit" value="Search" />
</form>
<?php if (strlen($query) > 0) { ?>
<p>
Found <?= $numHits ?> result(s) for query <?= $query ?>.
</p>
<?php foreach ($hits as $hit) { ?>
<h3><?= $hit->title ?> <?= $hit->score ?></h3>
<p>
<?= $hit->contents ?><br />
<a href="<?= $hit->url ?>">Read more…</a>
</p>
<?php } ?>
<?php } ?>

解壓縮密碼為 : http://www.vincent.idv.hk

Written by 傻仔仔