How can the use of fetch_array() in PHP potentially lead to errors in code execution?

Using fetch_array() in PHP can potentially lead to errors in code execution because it returns data in both numerical and associative indices by default. This can cause confusion and unexpected behavior when accessing the data. To avoid these issues, it is recommended to use fetch_assoc() instead, which only returns data in associative indices.

// Using fetch_assoc() instead of fetch_array() to avoid potential errors
$result = $stmt->fetch_assoc();