How to use PHP and Xunsearch to implement complex multi-condition search functions

How to use PHP and Xunsearch to implement complex multi-condition search functions

Overview:
With the development of the Internet, search engines have become an indispensable tool in our daily lives. Sometimes, we need to implement some complex search requirements, such as a combined search of multiple conditions. PHP and Xunsearch are two commonly used tools that can help us achieve such functionality. This article will introduce how to use PHP and Xunsearch to implement complex multi-condition search functions.

Xunsearch introduction:
Xunsearch is a high-performance full-text search solution based on the open source full-text search engine Xapian. It provides a friendly API and rich features, making it easy to perform full-text retrieval of data.

Installing Xunsearch:
First, we need to install Xunsearch on the server. You can download the source code package from the official website and install and configure it according to the official documents.

Create index:
Before using Xunsearch to search, we need to create an index first and add the data to be searched to the index. The following is a simple example:

require_once '/path/to/xunsearch/sdk/lib/XS.php';

$xs = new XS('demo'); // 创建链接到名为demo的索引

$index = $xs->index; // 获取索引对象

$index->clean(); // 清空索引

// 添加数据到索引
$doc = new XSDocument();
$doc->setFields(array(
    'id' => 1,
    'title' => 'PHP学习指南',
    'content' => 'PHP是一种流行的服务器端脚本语言，用于开发Web应用程序。',
    'category' => '编程教程'
));
$index->add($doc);

$xs->index = $index; // 保存索引
$xs->close(); // 关闭索引

The above code creates an index named demo and adds data of an article to the index.

Search function:
After creating the index, we can use Xunsearch to search. Xunsearch provides rich search functions, such as full-text search, field search, interval search, etc. The following is a sample code that demonstrates how to use Xunsearch for multi-condition search:

require_once '/path/to/xunsearch/sdk/lib/XS.php';

$xs = new XS('demo'); // 创建链接到名为demo的索引

$search = $xs->search; // 获取搜索对象

$query = new XSQuery(); // 创建查询对象

$query->setFuzzy(true); // 允许模糊搜索

$query->setLimit(10); // 设置返回结果数

$query->addQueryString('language:PHP OR language:Python'); // 设置搜索条件

// 搜索结果
$result = $search->search($query);

// 遍历搜索结果
foreach ($result as $document) {
    echo $document->title . '<br>';
    echo $document->content . '<br>';
    echo $document->category . '<br>';
}

$xs->close(); // 关闭索引

The above code creates a query object, sets fuzzy search and search conditions, and searches through the search object. The search result is an iterator that we can traverse to obtain information about each matching document.

Conclusion:
This article introduces how to use PHP and Xunsearch to implement complex multi-condition search functions. First, we need to install Xunsearch and create an index. Then, we can use Xunsearch's search function to perform multi-criteria searches. I hope this article can be helpful to you. If you have any questions, please leave a message for discussion.

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