Russian metaphone phonetic algorithm implementation for PHP VS UUID

Russian metaphone phonetic algorithm implementation for PHP

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Tracking mentions began in Dec 2020.

UUID

• Weekly help thread
  1 project | /r/PHP | 6 Jan 2023

  I'd recommend using either Ramsey/uuid or generating a random number using random_bytes(32) then compressing it. 32 bits of randomness should be sufficient for most programs.

• eli5 With billions and billions of people over time, how can fingerprints be unique to each person. With the small amount of space, wouldn’t they eventually have to repeat the pattern?
  2 projects | /r/explainlikeimfive | 2 Jan 2023

  Of course, theoretical math and applied math often work out differently. Here's a thread with a guy claiming his team's software is running into "Several hundred [UUID] collisions per day"

• weird php results microtime/hrtime
  1 project | /r/PHPhelp | 1 Dec 2022

  Or just use a library.

• UUIDs are a wonderful invention
  3 projects | /r/ProgrammerHumor | 10 Aug 2022

  I'll leave this here https://github.com/ramsey/uuid/issues/80

• What are types of bugs that only show up after thousands or millions of times of the code being run.
  1 project | /r/AskProgramming | 28 Feb 2022

  Not really in the realm of “thousands” of runs, but UUID collisions are possible and have been observed multiple times after only 1 million generations due to unknown reasons.

• Generating unique key code using PHP
  3 projects | /r/PHP | 29 Dec 2021
• Sortable Collision-Free UUIDs
  10 projects | news.ycombinator.com | 3 May 2021

  There's also the risk of bad randomness sources and/or bugs.

  One popular UUID library got a bug report stating: "We are generating about 1M UUID4 a day, and we are getting several hundred collisions a day". And so they were; turned out to be a bug/weird interaction between the OpenSSL library they were using for randomness and forking. (Details here, although it was all fixed years ago of course: https://github.com/ramsey/uuid/issues/80)

  On paper, you should never, ever, ever see a collision when generating a mere million v4 UUIDs a day, much less hundreds of collisions. But that doesn't mean it can't happen!

  This is also an interesting bit of analysis; comes from a company that processed a lot of UUIDs generated in browsers, checked, and discovered about 5 collisions per million UUIDs. Again, not what you'd naively expect! (Turned out to be mostly driven by misbehaving crawlers.) https://medium.com/teads-engineering/generating-uuids-at-sca...

• Things You Should Do Now
  4 projects | news.ycombinator.com | 19 Feb 2021

  just make sure you have everything configured correctly on your system if using UUIDs:

  https://github.com/ramsey/uuid/issues/80

  In the types of systems that need UUIDs there is probably no easy way to check for collisions. The prospect of mystery data corruption with no ability to trace it down frightens the hell out of me.

  The only reason that issue was reported is because someone was actually doing the collision checking. That's not going to be the norm in UUID systems. Think about it.

• A UUID can have so many combinations that UUIDs are effectively unique. But it's possible to generate the same one twice, however small the chance. Is it best practice to take this chance into account, checking to be sure you haven't used it?
  1 project | /r/learnprogramming | 11 Feb 2021

  In theory the risk of collision is so small it can be written off, but implementations can have bugs.