How can one ensure smooth navigation and progression through different levels of a photo gallery using PHP functions?

To ensure smooth navigation and progression through different levels of a photo gallery using PHP functions, you can create a pagination system that allows users to easily move between pages of images. This can be achieved by setting a limit on the number of images displayed per page and providing navigation links to move to the next or previous page. 

// Set the number of images to display per page
$imagesPerPage = 10;

// Get the current page number from the URL
$page = isset($_GET['page']) ? $_GET['page'] : 1;

// Calculate the offset for the query based on the current page
$offset = ($page - 1) * $imagesPerPage;

// Query the database for images with LIMIT and OFFSET
$query = "SELECT * FROM images LIMIT $imagesPerPage OFFSET $offset";
$result = mysqli_query($conn, $query);

// Display the images
while ($row = mysqli_fetch_assoc($result)) {
    echo '<img src="' . $row['image_url'] . '" alt="' . $row['image_alt'] . '">';
}

// Display pagination links
$totalImages = mysqli_num_rows(mysqli_query($conn, "SELECT * FROM images"));
$totalPages = ceil($totalImages / $imagesPerPage);

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

Keywords

PHP photo gallery navigation progression levels

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