phpcms 无限加载

<?php
// PHP代码示例
$page = isset($_GET['page']) ? intval($_GET['page']) : 1;
$limit = 10;
$offset = ($page - 1) * $limit;

$sql = "SELECT * FROM articles LIMIT $limit OFFSET $offset";
$result = mysqli_query($conn, $sql);

while ($row = mysqli_fetch_assoc($result)) {
    echo '<div>' . $row['title'] . '</div>';
}

// 分页链接
$sql = "SELECT COUNT(*) as total FROM articles";
$result = mysqli_query($conn, $sql);
$row = mysqli_fetch_assoc($result);
$total = $row['total'];
$pages = ceil($total / $limit);

for ($i = 1; $i <= $pages; $i++) {
    echo '<a href="?page=' . $i . '">' . $i . '</a> ';
}
?>

// JavaScript代码示例
$(window).scroll(function() {
    if ($(window).scrollTop() + $(window).height() >= $(document).height() - 100) {
        var page = parseInt($('.page-link').last().attr('href').split('=')[1]) + 1;
        $.ajax({
            url: 'load_more.php',
            data: { page: page },
            success: function(data) {
                $('#content').append(data);
            }
        });
    }
});