如何使用PHP突出显示从MySQL数据库获取的Jquery datepicker日期？

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

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

// 执行查询语句
$sql = "SELECT date_column FROM your_table";
$result = $conn->query($sql);

// 处理查询结果
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        $date = $row["date_column"];
        // 在这里进行日期突出显示的处理
    }
} else {
    echo "没有找到日期数据";
}

// 关闭连接
$conn->close();
?>

// 在日期突出显示的处理部分
$date_array = array("2022-01-01", "2022-01-05", "2022-01-10"); // 假设这是要突出显示的日期数组

echo "<script>";
echo "$(function() {";
echo "$('#datepicker').datepicker({";
echo "beforeShowDay: function(date) {";
echo "var dateString = $.datepicker.formatDate('yy-mm-dd', date);";
echo "if ($.inArray(dateString, " . json_encode($date_array) . ") != -1) {";
echo "return [true, 'highlight'];"; // 使用CSS类名'highlight'来突出显示日期
echo "} else {";
echo "return [true, ''];";
echo "}";
echo "}";
echo "});";
echo "});";
echo "</script>";

.highlight {
    background-color: yellow;
    font-weight: bold;
}