What are common pitfalls when using while loops with db_fetch in PHP?

Common pitfalls when using while loops with db_fetch in PHP include forgetting to check if there are any rows returned by the query before entering the loop, not fetching the next row inside the loop, and not properly handling errors that may occur during the fetch process. To solve these issues, always check if there are rows to fetch, fetch the next row inside the loop, and handle any errors that may occur during the fetch process.

// Assuming $result is the result of a database query
if ($result) {
    while ($row = db_fetch($result)) {
        // Process each row here
    }
} else {
    // Handle the case where there are no rows returned
}