how to add pagination in php code example

Example 1: pagination html php

<html>
<head>
    <title>Pagination</title>
    <!-- Bootstrap CDN -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
    <?php

        if (isset($_GET['pageno'])) {
            $pageno = $_GET['pageno'];
        } else {
            $pageno = 1;
        }
        $no_of_records_per_page = 10;
        $offset = ($pageno-1) * $no_of_records_per_page;

        $conn=mysqli_connect("localhost","my_user","my_password","my_db");
        // Check connection
        if (mysqli_connect_errno()){
            echo "Failed to connect to MySQL: " . mysqli_connect_error();
            die();
        }

        $total_pages_sql = "SELECT COUNT(*) FROM table";
        $result = mysqli_query($conn,$total_pages_sql);
        $total_rows = mysqli_fetch_array($result)[0];
        $total_pages = ceil($total_rows / $no_of_records_per_page);

        $sql = "SELECT * FROM table LIMIT $offset, $no_of_records_per_page";
        $res_data = mysqli_query($conn,$sql);
        while($row = mysqli_fetch_array($res_data)){
            //here goes the data
        }
        mysqli_close($conn);
    ?>
    <ul class="pagination">
        <li><a href="?pageno=1">First</a></li>
        <li class="<?php if($pageno <= 1){ echo 'disabled'; } ?>">
            <a href="<?php if($pageno <= 1){ echo '#'; } else { echo "?pageno=".($pageno - 1); } ?>">Prev</a>
        </li>
        <li class="<?php if($pageno >= $total_pages){ echo 'disabled'; } ?>">
            <a href="<?php if($pageno >= $total_pages){ echo '#'; } else { echo "?pageno=".($pageno + 1); } ?>">Next</a>
        </li>
        <li><a href="?pageno=<?php echo $total_pages; ?>">Last</a></li>
    </ul>
</body>
</html>

Example 2: pagination in php

try {

    // Find out how many items are in the table
    $total = $dbh->query('
        SELECT
            COUNT(*)
        FROM
            table
    ')->fetchColumn();

    // How many items to list per page
    $limit = 20;

    // How many pages will there be
    $pages = ceil($total / $limit);

    // What page are we currently on?
    $page = min($pages, filter_input(INPUT_GET, 'page', FILTER_VALIDATE_INT, array(
        'options' => array(
            'default'   => 1,
            'min_range' => 1,
        ),
    )));

    // Calculate the offset for the query
    $offset = ($page - 1)  * $limit;

    // Some information to display to the user
    $start = $offset + 1;
    $end = min(($offset + $limit), $total);

    // The "back" link
    $prevlink = ($page > 1) ? '<a href="?page=1" title="First page">«</a> <a href="?page=' . ($page - 1) . '" title="Previous page">‹</a>' : '<span class="disabled">«</span> <span class="disabled">‹</span>';

    // The "forward" link
    $nextlink = ($page < $pages) ? '<a href="?page=' . ($page + 1) . '" title="Next page">›</a> <a href="?page=' . $pages . '" title="Last page">»</a>' : '<span class="disabled">›</span> <span class="disabled">»</span>';

    // Display the paging information
    echo '<div id="paging"><p>', $prevlink, ' Page ', $page, ' of ', $pages, ' pages, displaying ', $start, '-', $end, ' of ', $total, ' results ', $nextlink, ' </p></div>';

    // Prepare the paged query
    $stmt = $dbh->prepare('
        SELECT
            *
        FROM
            table
        ORDER BY
            name
        LIMIT
            :limit
        OFFSET
            :offset
    ');

    // Bind the query params
    $stmt->bindParam(':limit', $limit, PDO::PARAM_INT);
    $stmt->bindParam(':offset', $offset, PDO::PARAM_INT);
    $stmt->execute();

    // Do we have any results?
    if ($stmt->rowCount() > 0) {
        // Define how we want to fetch the results
        $stmt->setFetchMode(PDO::FETCH_ASSOC);
        $iterator = new IteratorIterator($stmt);

        // Display the results
        foreach ($iterator as $row) {
            echo '<p>', $row['name'], '</p>';
        }

    } else {
        echo '<p>No results could be displayed.</p>';
    }

} catch (Exception $e) {
    echo '<p>', $e->getMessage(), '</p>';
}

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