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The other side like performance, indexability, etc. On the one side, UUIDs will be that kind of added value from the aspects mentioned above. I think every upside on a specific topic, will mostly have a downside as well, so let’s talk about that. Disadvantages of using UUIDs Disadvantages of using UUIDs You can just keep in mind, that UUIDs will prevent clashing, even generated on different systems.
Uuid generator php full#
With UUIDs on the other hand, this most likely won’t be the case (care for the different versions here).īy the word „ universally“ of the full name „universally unique identifier“ this might get clearer.Īs I already promised, I won’t go to deep on this aspect of UUID, maybe I’ll do so in a later post! Well, if you’re using normal, incremental numbers, you could easily run into some id clashes. Now imagine building up on that one shop, where you want to export and import the data in another system. Imagine you have that one online shop, where you already got thousands of orders, bills and more data.
Uuid generator php Offline#
Well I think you are correct – usually nothing will happen.Īt this point, UUIDs come in handy, as they can be generated offline and can still be unique! Uniqueness accross systems & replications Now think about what happens, when you can’t contact the database, if you’re offline. This will call some kind of api in the background, which then creates that new entity for you.ĭuring that process, the database will be contacted as central unit, being responsible for generating the new id. You will most likely fill out that form in front of you and then press something like „ confirm„, or „save“. You have that basic overview screen, where you click this sweet „ +„-button and voila.Īfter that, you will have your detail screen displayed, which is ready to get filled out. Usually the approach of working with the database or entities in general, is like the following. Thoughts like „Hmm, this shop did just start, maybe it’s a scam.“ could arise. This could lead the end user to actually interpret more, maybe negative things into that. The main reason for the customer would mostly be, to hide actual counts from the end user.Įnd users could guess from order number „5“, that this shop maybe just started. This is literally one thing, where some customers and developers argue about doing it different. When you have one id, you can increment that by yourself and you could test „Hmm, what’s the next one about!?“. No matter if those numbers start at 300, or at 300000, you can always kinda guess, what’s the next one. Here we are, already facing one of the common problems when using „normal“ numbers. Sure, there are some cases where people want to define another starting point like at 5000, but. So basically this will be an incrementing number, which starts at like 1 and counting up. The first column inside that table, will usually display the unique identifier for that entity. So far this isn’t really exciting, i know, but what comes into your mind, when thinking about the first column? You got that usual screen with something like a table, which displays some data about the listed entities. So imagine having that graphical user interface, like most of the time, with some kind of list. The background story – PHP generate UUID’s Background story – PHP generate UUIDsīefore we actually start thinking about code, we could also start from a little different angle. So let’s get into the background story and later into how we can actually create/generate one. This doesn’t only apply for the developers side, customers and other involved parties actually want something else, too. Using a different approach than those normal „1, 2. It doesn’t matter if it’s stored in a good old MySQL Database, or in one of the document based alternatives. Many projects nowadays require a new way of generating that unique identifier for like your entities. There are different versions of UUIDs, but the main focus will lie on generating an UUID of the version 4. Those „special kind“ identifiers are – as the name obviously suggests – for uniquely identifying „things“. In this post i will partially dive into the thing called universally unique identifiers. I welcome you to todays post on „How to make PHP generate a UUID for you?“. You want to make PHP generate UUIDs for you!?
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1 You want to make PHP generate UUIDs for you!?.