Download the PHP package bestyii/yii2-snowflake without Composer
On this page you can find all versions of the php package bestyii/yii2-snowflake. It is possible to download/install these versions without Composer. Possible dependencies are resolved automatically.
Table of contents
Download bestyii/yii2-snowflake
More information about bestyii/yii2-snowflake
Files in bestyii/yii2-snowflake
Download bestyii/yii2-snowflake
More information about bestyii/yii2-snowflake
Files in bestyii/yii2-snowflake
FAQ
After the download, you have to make one include require_once('vendor/autoload.php');. After that you have to import the classes with use statements.
Example:
Example:
If you use only one package a project is not needed. But if you use more then one package, without a project it is not possible to import the classes with use statements.
In general, it is recommended to use always a project to download your libraries. In an application normally there is more than one library needed.
In general, it is recommended to use always a project to download your libraries. In an application normally there is more than one library needed.
Some PHP packages are not free to download and because of that hosted in private repositories.
In this case some credentials are needed to access such packages.
Please use the auth.json textarea to insert credentials, if a package is coming from a private repository.
You can look here for more information.
- Some hosting areas are not accessible by a terminal or SSH. Then it is not possible to use Composer.
- To use Composer is sometimes complicated. Especially for beginners.
- Composer needs much resources. Sometimes they are not available on a simple webspace.
- If you are using private repositories you don't need to share your credentials. You can set up everything on our site and then you provide a simple download link to your team member.
- Simplify your Composer build process. Use our own command line tool to download the vendor folder as binary. This makes your build process faster and you don't need to expose your credentials for private repositories.
Please rate this library. Is it a good library?
Informations about the package yii2-snowflake
YII2 Snowflake 雪花算法ID生成器
雪花算法ID生成器 (Yii2 组件)
环境要求
PHP >= 7.0
安装
安装此扩展的首选方法是：composer.
项目根目录下运行
或添加到composer.json文件的require区域中.
配置
快速上手
在配置文件中加入
| 参数 | 说明 |
|---|---|
| startDate | 起始日期 , 字符串Y-m-d格式, 如: '2022-12-31' |
高级配置
雪花算法生成的 ID 并不能保证唯一，如当两个不同请求同一时刻进入相同的数据中心的相同节点时，而此时该节点生成的 sequence 又是相同时，就会导致生成的 ID 重复。 所以要想使用雪花算法生成唯一的 ID，就需要保证同一节点同一毫秒内生成的序列号是唯一的。
此扩展内置了基于redis的序列号生成器\bestyii\snowflake\RedisSequenceResolver,保证同一毫秒生成的序列号不同。
| 参数 | 说明 |
|---|---|
| startDate | 起始日期 |
| datacenterId | 数据中心id |
| workerId | 主机id |
| sequencer | \bestyii\snowflake\RedisSequenceResolver, 需要配置 yii2-redis 组件 |
如何使用
手动
生成id
解析id
使用Behavior自动生成id
本组件支持通过附加ActiveRecord Model的behavior方式来完成自动生成id
使用下列语法:
在数据保存之前, 该behavior(行为)会自动生成id.
雪花算法说明
本项目基于 godruoyi/php-snowflake 实现.
Snowflake 是 Twitter 内部的一个 ID 生算法，可以通过一些简单的规则保证在大规模分布式情况下生成唯一的 ID 号码。其组成为：
- 第一个 bit 为未使用的符号位。
- 第二部分由 41 位的时间戳（毫秒）构成，他的取值是当前时间相对于某一时间的偏移量。
- 第三部分和第四部分的 5 个 bit 位表示数据中心和机器ID，其能表示的最大值为 2^5 -1 = 31。
- 最后部分由 12 个 bit 组成，其表示每个工作节点每毫秒生成的序列号 ID，同一毫秒内最多可生成 2^12 -1 即 4095 个 ID。
需要注意的是：
- 在分布式环境中，5 个 bit 位的 datacenter 和 worker 表示最多能部署 31 个数据中心，每个数据中心最多可部署 31 台节点 -41 位的二进制长度最多能表示 2^41 -1 毫秒即 69 年，所以雪花算法最多能正常使用 69 年，为了能最大限度的使用该算法，你应该为其指定一个开始时间。
All versions of yii2-snowflake with dependencies
PHP Build Version
Package Version
The package bestyii/yii2-snowflake contains the following files
Loading the files please wait ....