Use PHP and Manticore Search to develop various file search functions

Use PHP and Manticore Search to develop various file search functions

Introduction:
In the development of modern information technology, file search functions have become standard for various applications. In order to provide an efficient and accurate file search experience, we can use PHP and Manticore Search for development. Manticore Search is an open source full-text search engine with highly flexible performance and functionality. In this article, we will introduce how to use PHP and Manticore Search to develop various file search functions and provide code examples.

1. Install and configure Manticore Search
First, we need to install and configure Manticore Search. The latest version of Manticore Search can be downloaded from the official website (https://manticoresearch.com/). After the installation is complete, you need to create an index and configure its fields. The following is an example index configuration file (index.conf):

source src
{
    type            = mysql
    sql_host        = localhost
    sql_user        = username
    sql_pass        = password
    sql_db          = database
    sql_query_pre   = SET NAMES utf8
    sql_query       = SELECT id, title, content FROM documents
}

index idx
{
    source          = src
    path            = /path/to/index/
    docinfo         = extern
    morphology      = stem_en
    min_word_len    = 2
    charset_type    = utf-8
}

The above configuration will connect to the MySQL database and use the documents table in it as the data source. Note that username, password, database, /path/to/index/ are replaced with actual values.

2. Basic file search function
Next, you can use PHP code to connect to Manticore Search and perform basic file search functions. The following is an example PHP code:

<?php
// 连接到Manticore Search
$host = 'localhost';
$port = 9306;
$index = 'idx';

$sphinx = new SphinxClient();
$sphinx->setServer($host, $port);

// 执行文件搜索
$query = 'php开发';
$result = $sphinx->query($query, $index);

// 输出搜索结果
if ($result['total_found'] > 0) {
    foreach ($result['matches'] as $match) {
        echo 'ID: ' . $match['id'] . '<br>';
        echo '标题: ' . $match['attrs']['title'] . '<br>';
        echo '内容: ' . $match['attrs']['content'] . '<br><br>';
    }
} else {
    echo '没有找到匹配的文件。';
}
?>

In the above code, a SphinxClient instance is first created and the address and port connected to Manticore Search are set. Then, a keyword search is performed and the results are saved in the $result variable. Finally, the search results are output through a loop.

3. Advanced file search functions
In addition to basic keyword searches, Manticore Search also supports more advanced file search functions, such as sorting, filtering, and highlighting. Here is some sample code:

1. Sort file search results

   // 按文件标题排序搜索结果
   $sphinx->setSortMode(SPH_SORT_EXTENDED, 'title ASC');
   
   // 按相关性和文件标题排序搜索结果
   $sphinx->setSortMode(SPH_SORT_EXTENDED, '@relevance DESC, title ASC');

2. Filter file search results

   // 仅搜索包含某个标签的文件
   $sphinx->setFilter('tags', [1]);
   
   // 仅搜索包含某个标签且在一定时间范围内的文件
   $sphinx->setFilter('tags', [1]);
   $sphinx->setFilterRange('timestamp', $start, $end);

3. Highlight search results

   // 设置高亮显示的HTML标签和样式
   $sphinx->setOverride('html', '<span class="highlight">', '</span>');
   
   // 获取带有高亮显示的文件标题和内容
   $sphinx->setSelect('*, HIGHLIGHT(title) AS highlighted_title, HIGHLIGHT(content) AS highlighted_content');

   The above code only shows a small part of the advanced file search function, you can further customize it according to your needs.

   Summary:
   This article introduces how to use PHP and Manticore Search to develop various file search functions. First, we installed and configured Manticore Search and created an index. Then, PHP code is used to connect to Manticore Search and demonstrate basic and advanced file search capabilities. I hope this article can help you quickly develop powerful file search capabilities.

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