In what ways can utilizing PHP's Datei-Klasse SplFileInfo improve file handling and security in PHP applications?

Utilizing PHP's Datei-Klasse SplFileInfo can improve file handling and security in PHP applications by providing a more object-oriented approach to working with files. SplFileInfo allows for easy access to file information such as file size, permissions, and file type, making it easier to validate and sanitize file inputs. Additionally, SplFileInfo can help prevent common security vulnerabilities such as directory traversal attacks by providing methods to safely retrieve file paths.

$file = new SplFileInfo('/path/to/file.txt');

if($file->isFile()) {
    // Perform operations on the file
    echo 'File size: ' . $file->getSize();
    echo 'File permissions: ' . $file->getPerms();
} else {
    echo 'Invalid file';
}