php获取关联搜索源码

<?php
// 数据库连接
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 创建全文索引（如果尚未创建）
$sql = "CREATE FULLTEXT INDEX idx_fulltext ON products (name, description)";
$conn->query($sql);

// 用户输入的查询词
$query = $_GET['q'];

// 执行全文搜索
$sql = "SELECT * FROM products WHERE MATCH(name, description) AGAINST ('$query' IN NATURAL LANGUAGE MODE)";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "ID: " . $row["id"]. " - Name: " . $row["name"]. " - Description: " . $row["description"]. "<br>";
    }
} else {
    echo "没有找到相关结果";
}

$conn->close();
?>