What are the potential pitfalls of using object-oriented database functions in PHP, such as fetch_array()?

One potential pitfall of using object-oriented database functions in PHP, such as fetch_array(), is that it can return data in multiple formats (associative array, numeric array, or both), which can lead to confusion and errors in data processing. To solve this issue, it's recommended to specify the desired format explicitly when fetching data from the database.

// Specify the desired format when fetching data from the database
$row = $result->fetch_array(MYSQLI_ASSOC);