In PHP, what are the best practices for handling pagination and maintaining navigation functionality with large datasets?

When dealing with large datasets, it is essential to implement pagination to break down the data into manageable chunks for better user experience and performance. To maintain navigation functionality, you can use query parameters to keep track of the current page and adjust the SQL query accordingly. Additionally, you can display navigation links to allow users to easily navigate between pages. 

<?php

// Assuming $currentPage is the current page number
$currentPage = isset($_GET['page']) ? $_GET['page'] : 1;
$perPage = 10; // Number of items per page

// Calculate the offset for the SQL query
$offset = ($currentPage - 1) * $perPage;

// Query to fetch data with pagination
$sql = "SELECT * FROM your_table LIMIT $perPage OFFSET $offset";
// Execute the query and display the results

// Display pagination links
$totalPages = ceil($totalItems / $perPage);
for ($i = 1; $i <= $totalPages; $i++) {
    echo "<a href='?page=$i'>$i</a> ";
}

?>

Keywords

pagination navigation large datasets PHP functions libraries

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