What are some potential pitfalls of using SELECT * in a MySQL query in PHP?

Using SELECT * in a MySQL query can potentially retrieve more data than needed, leading to unnecessary overhead and slower query performance. It can also make the code less maintainable as new columns added to the table will automatically be included in the query results. To avoid these pitfalls, it's recommended to explicitly list the columns you want to retrieve in the SELECT statement.

// Explicitly list the columns you want to retrieve in the SELECT statement
$query = "SELECT column1, column2, column3 FROM table_name WHERE condition";
$result = mysqli_query($connection, $query);

// Process the query result
if ($result) {
    while ($row = mysqli_fetch_assoc($result)) {
        // Process each row here
    }
} else {
    echo "Error: " . mysqli_error($connection);
}