uuid 生成uuid
最后更新于：2022-04-02 02:23:41
[TOC]
>[github](https://github.com/ramsey/uuid)
## 概述
1. PHP 7.2+
## 安装
`composer require ramsey/uuid
`
## 使用
```
use Ramsey\Uuid\Uuid;
use Ramsey\Uuid\Exception\UnsatisfiedDependencyException;
try {
// Generate a version 1 (time-based) UUID object
$uuid1 = Uuid::uuid1();
echo $uuid1->toString() . "\n"; // i.e. e4eaaaf2-d142-11e1-b3e4-080027620cdd
// Generate a version 3 (name-based and hashed with MD5) UUID object
$uuid3 = Uuid::uuid3(Uuid::NAMESPACE_DNS, 'php.net');
echo $uuid3->toString() . "\n"; // i.e. 11a38b9a-b3da-360f-9353-a5a725514269
// Generate a version 4 (random) UUID object
$uuid4 = Uuid::uuid4();
echo $uuid4->toString() . "\n"; // i.e. 25769c6c-d34d-4bfe-ba98-e0ee856f3e7a
// Generate a version 5 (name-based and hashed with SHA1) UUID object
$uuid5 = Uuid::uuid5(Uuid::NAMESPACE_DNS, 'php.net');
echo $uuid5->toString() . "\n"; // i.e. c4a760a8-dbcf-5254-a0d9-6a4474bd1b62
} catch (UnsatisfiedDependencyException $e) {
// Some dependency was not met. Either the method cannot be called on a
// 32-bit system, or it can, but it relies on Moontoast\Math to be present.
echo 'Caught exception: ' . $e->getMessage() . "\n";
}
```
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