如何使用php打破网址并将关键字存储到数据库中

<?php
// 假设网址为 "https://www.example.com/search?keyword=php&category=web"
$url = "https://www.example.com/search?keyword=php&category=web";

// 解析网址，提取查询参数
$query = parse_url($url, PHP_URL_QUERY);

// 将查询参数转换为数组
$params = [];
parse_str($query, $params);

// 分割关键字
$keywords = explode(",", $params["keyword"]);

// 连接到数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

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

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 将关键字插入到数据库中
foreach ($keywords as $keyword) {
    $sql = "INSERT INTO keywords (keyword) VALUES ('$keyword')";

    if ($conn->query($sql) === TRUE) {
        echo "关键字 '$keyword' 插入成功";
    } else {
        echo "关键字 '$keyword' 插入失败: " . $conn->error;
    }
}

$conn->close();
?>