Are there specific PHP functions or methods that are recommended for reading and manipulating file structures on a website?

When working with file structures on a website, it is recommended to use PHP functions like `scandir()` to read the contents of a directory, `file_get_contents()` to read the contents of a file, `file_put_contents()` to write content to a file, and `unlink()` to delete a file. These functions provide efficient ways to manipulate file structures within a website.

// Read the contents of a directory
$files = scandir('/path/to/directory');

// Read the contents of a file
$content = file_get_contents('/path/to/file.txt');

// Write content to a file
file_put_contents('/path/to/file.txt', 'Hello, World!');

// Delete a file
unlink('/path/to/file.txt');