What resources or tutorials are recommended for PHP beginners looking to improve their understanding of file handling functions like rename() in PHP?

Beginners looking to improve their understanding of file handling functions like rename() in PHP can benefit from resources such as the official PHP documentation, online tutorials on websites like W3Schools or PHP.net, and books like "PHP and MySQL Web Development" by Luke Welling and Laura Thomson. These resources provide detailed explanations, examples, and exercises to help beginners grasp the concepts and practice using file handling functions effectively.

<?php
$old_file = "old_file.txt";
$new_file = "new_file.txt";

if (rename($old_file, $new_file)) {
    echo "File renamed successfully.";
} else {
    echo "Error renaming file.";
}
?>