Replaced uniqid with a uuid function.

[jerryq27]

Did some research on the uniqid(); function, and the chance for a conflict seems a bit high. I've also came across this post discussing the issues with it.

I can't take credit for the UUID code in my pull request. I found this answer when researching a PHP function to generate UUID's.

Another option is to use the WordPress wp_generate_uuid4 function, but the code from Stack Overflow doesn't seem as reliant on WordPress, though since this is a package for ACF, that probably doesn't matter.

Hope you pull in my changes or consider using a different function to generate these IDs!

[scrobbleme]

There is also wp_unique_id() which takes a prefix, so i.e. acf-uuid- would make it even less unique. Or just use something like data('Ymd') as prefix.

I really wouldn't care about collisions here...

Edit: Ah, the field value is the UUID... so the prefix might be an field option.