What are some best practices for managing temporary files in PHP to ensure efficient and secure script execution?

When managing temporary files in PHP, it is important to ensure that the files are securely created, used, and deleted to prevent security vulnerabilities and optimize script execution. One best practice is to generate unique file names to avoid conflicts and potential attacks. Additionally, always set appropriate file permissions to restrict access to these temporary files.

// Generate a unique temporary file name
$tempFileName = tempnam(sys_get_temp_dir(), 'prefix');

// Use the temporary file for your operations
// ...

// Delete the temporary file when no longer needed
unlink($tempFileName);