What are efficient ways to troubleshoot and debug PHP code related to pagination functionality, such as resolving errors in displaying the correct number of entries per page?

To troubleshoot and debug PHP code related to pagination functionality, such as resolving errors in displaying the correct number of entries per page, you can start by checking the logic for calculating the offset and limit values for fetching data from the database. Make sure these values are correctly calculated based on the current page number and the number of entries per page. Additionally, verify that the total number of entries is accurate to ensure the pagination links are displayed correctly.

// Example code snippet for calculating offset and limit values for pagination

// Define the number of entries per page
$entriesPerPage = 10;

// Get the current page number
if (isset($_GET['page'])) {
    $currentPage = $_GET['page'];
} else {
    $currentPage = 1;
}

// Calculate the offset and limit values
$offset = ($currentPage - 1) * $entriesPerPage;
$limit = $entriesPerPage;

// Query the database with the calculated offset and limit values
$query = "SELECT * FROM entries LIMIT $offset, $limit";
$result = mysqli_query($connection, $query);

// Display the entries on the page
while ($row = mysqli_fetch_assoc($result)) {
    // Display each entry
}