What are common pitfalls when using the include function in PHP for file inclusion?

One common pitfall when using the include function in PHP for file inclusion is not specifying the correct file path, leading to errors or the file not being included. To avoid this issue, it is important to use the correct file path relative to the current script location. Additionally, it is recommended to use the `__DIR__` magic constant to get the directory of the current script and construct the file path from there.

// Correct way to include a file using the include function with the correct file path
include __DIR__ . '/path/to/file.php';