What are common pitfalls when implementing pagination in PHP, specifically when using MySQL queries?

One common pitfall when implementing pagination in PHP with MySQL queries is not properly calculating the offset for the LIMIT clause. This can lead to incorrect results being displayed or missing records. To solve this, you should calculate the offset based on the current page number and the number of records per page. 

// Calculate the offset for pagination
$recordsPerPage = 10;
$page = isset($_GET['page']) ? $_GET['page'] : 1;
$offset = ($page - 1) * $recordsPerPage;

// Query to fetch paginated results
$sql = "SELECT * FROM table_name LIMIT $offset, $recordsPerPage";
$result = mysqli_query($connection, $sql);

// Display results
while($row = mysqli_fetch_assoc($result)) {
    // Display data
}

Keywords

pagination PHP MySQL queries performance limit clause

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