Are there any best practices to follow when generating unique strings in PHP to ensure uniqueness and reliability?

When generating unique strings in PHP, it is important to ensure that the generated strings are truly unique and reliable. One common approach is to combine a timestamp with a random string to increase uniqueness. Additionally, using functions like `uniqid()` or `random_bytes()` can help generate unique strings reliably.

// Generate a unique string using timestamp and random string
$uniqueString = time() . bin2hex(random_bytes(5));