What are common errors encountered when using the include() function in PHP?

One common error encountered when using the include() function in PHP is providing a wrong file path or filename. This can result in the file not being included properly, leading to errors or unexpected behavior. To solve this issue, make sure to double-check the file path and filename to ensure they are correct.

// Incorrect file path
include('wrong_file.php');

// Correct file path
include('correct_file.php');