Now you know everything about the ways to generate UUID in PHP, just use the right one for you.
Ramsey/uuid is an UUID component that leverage many uuid generator (it can use the PECL internally). Keep in mind that the FFI binding works only with PHP 7.4+, so it’s likely unusable for many projects (for now). Now you now know everything about uuid, so… just make the right choice.
I prefer the PECL extension over the ramsey/uuid because it’s simpler and more straightforward. It works across all the platforms both browser and server environments.We have been using UUID for years and different ways to generate UUID exist.
You can easily generate UUIDs in JavaScript using the library called uuid. So it's not recommended to use version 5 UUIDs anymore. However, according to the fast-paced technology these days, SHA-1 is facing the same security issue as MD5. Therefore, version 5 UUIDs replaced MD5 with SHA-1 which is a better hashing algorithm. Nowadays the MD5 hashing algorithm is considered vulnerable and easier to crack. Version 5 - Version 5 UUIDs are similar to version 3 with stronger encryption.
However, the possibility of duplication for version 4 UUIDs is extremely low practically. There is no guarantee that version 4 UUIDs will be unique when generated. Version 4 - Version 4 UUIDs are completely randomized. Version 3 - Version 3 makes use of the MD5 hashing algorithm to generate a UUID. Therefore, most UUID libraries skip implementing version 2 which result in version 2 UUIDs not being used practically. This version is reserved by RFC 4122, and no further details are announced. Version 2 - Version 2 UUIDs are similar to version 1 with DCE security. Version 1 UUIDs are mostly used in transactions to ensure uniqueness.
However, the pro is version 1 UUIDs generated on the same machine will always be unique according to the different timestamps.
The main con of version 1 UUIDs is that the MAC address of the machine used to generate them is exposed which could lead to security issues. Version 1 - Version 1 UUIDs are generated from the combination of the MAC address of a machine and the current timestamp in nanoseconds.