How to generate a new GUID?

Question

I\'m working on a web service which requires a new GUID() passed as a reference to a method within the service.

I am not familiar with C#

Answer 1

As an alternative to the above options:

$guid = bin2hex(openssl_random_pseudo_bytes(16));

It gives a string like 412ab7489d8b332b17a2ae127058f4eb