Use PHP and Xunsearch to implement the automatic completion function of search keywords-PHP Tutorial-php.cn

Use PHP and Xunsearch to implement the automatic completion function of search keywords

王林

Release： 2023-07-29 17:56:02

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Use PHP and Xunsearch to realize the automatic completion function of search keywords

The automatic completion function is when the user enters the search keyword, prompts and supplements based on the existing data to improve the accuracy of the search sex and user experience. In PHP development, this function can be achieved with the help of Xunsearch search engine library. This article will introduce how to use PHP and Xunsearch to implement the automatic completion function of search keywords.

First, we need to build a Xunsearch search engine service. You can use the installation package and tutorial provided by Xunsearch's official documentation to complete the setup. After the construction is completed, you need to use the SDK provided by Xunsearch to connect to the search engine service.

In PHP, you can use the classes provided by Xunsearch to perform search operations. The following is a simple sample code:

<?php
require_once('/path/to/xunsearch/lib/XS.php');

$xs = new XS('demo'); // 创建一个XS实例，参数为项目名称

$search = $xs->search; // 获取搜索对象

$word = $_GET['keyword']; // 获取用户输入的关键词

$search->setLimit(10); // 设置需要返回的搜索结果数量

$query = new XSTokenizerScws($word); // 创建一个分词器

$search->setQuery($query); // 设置搜索关键词

$search->setFuzzy(true); // 设置模糊搜索

$docs = $search->search(); // 执行搜索操作

$result = array();
foreach ($docs as $doc) {
    $result[] = $doc->title; //将搜索结果的标题添加到结果数组中
}

echo json_encode($result); // 将结果数组转换为JSON格式并返回给前端

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The above code implements fuzzy search based on the keywords entered by the user and returns the title of the search results. Among them, $xs->search obtains a search object, $search->setQuery($query) sets the search keyword, $search-> setFuzzy(true)enables fuzzy search, $search->search()performs the search operation.

In order for the auto-complete function to take effect, we need to conduct real-time searches and prompts when the user enters the input box. This can be achieved using AJAX technology. The following is a simple front-end code example:

<!DOCTYPE html>
<html>
<head>
    <title>搜索关键词自动补全</title>
    <script src="https://cdn.staticfile.org/jquery/3.6.0/jquery.min.js"></script>
</head>
<body>
    <input type="text" id="keyword" placeholder="请输入关键词">
    <ul id="result"></ul>

    <script>
        $(function() {
            $("#keyword").on('input', function() {
                var keyword = $(this).val();
                $.ajax({
                    url: "search.php",
                    type: "GET",
                    data: { keyword: keyword },
                    success: function(response) {
                        var result = JSON.parse(response);
                        var html = "";
                        for (var i = 0; i < result.length; i++) {
                            html += "<li>" + result[i] + "</li>";
                        }
                        $("#result").html(html);
                    }
                });
            });
        });
    </script>
</body>
</html>

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The above front-end code implements real-time search and prompts by listening to the input event of the input box. Whenever the user input changes, a GET request will be sent to search.php on the backend, and the keywords entered by the user will be passed as parameters. The results returned by the backend are displayed on the page by dynamically generating <li> elements.

To sum up, it is not complicated to use PHP and Xunsearch to realize the automatic completion function of search keywords. By configuring the Xunsearch search engine and writing the corresponding PHP and front-end code, a simple and efficient search completion function can be implemented to improve the accuracy and experience of user search.

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