How can the use of different file extensions impact the deletion of files in PHP?

Different file extensions can impact the deletion of files in PHP because the file extension can affect how the file is interpreted by the system. To ensure that files are deleted properly regardless of their extension, it is important to use the correct file deletion function in PHP, such as `unlink()`, and provide the full file path including the extension.

// Example of deleting a file with a specific file extension
$file_path = 'path/to/file.txt';
unlink($file_path);