78 lines
1.6 KiB
PHP
78 lines
1.6 KiB
PHP
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<?php
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/**
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*+------------------
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* madong
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*+------------------
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* Copyright (c) https://gitee.com/motion-code All rights reserved.
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*+------------------
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* Author: Mr. April (405784684@qq.com)
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*+------------------
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* Official Website: http://www.madong.tech
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*/
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namespace core\uuid;
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/**
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* uuid
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*
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* @author Mr.April
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* @since 1.0
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*/
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class UUIDGenerator
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{
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/**
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* 生成UUID
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*
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* @param string $format
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* @param int $length
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*
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* @return string|null
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* @throws \Exception
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*/
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public static function generate(string $format = 'uuid', int $length = 36): ?string
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{
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if ($format === 'uuid') {
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return self::generateUUID();
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} elseif ($format === 'custom') {
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return self::generateCustomUUID($length);
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}
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return null;
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}
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/**
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* 生成标准格式UUID
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*
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* @return string
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* @throws \Exception
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*/
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private static function generateUUID(): string
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{
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// 生成标准UUID
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return sprintf(
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'%s-%s-%s-%s-%s',
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bin2hex(random_bytes(4)),
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bin2hex(random_bytes(2)),
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bin2hex(random_bytes(2)),
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bin2hex(random_bytes(2)),
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bin2hex(random_bytes(6))
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);
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}
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/**
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* 自定义UUID
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*
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* @param $length
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*
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* @return string|null
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* @throws \Exception
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*/
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private static function generateCustomUUID($length): ?string
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{
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// 生成自定义长度的UUID
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if ($length < 1) {
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return null; // 长度必须大于0
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}
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return strtoupper(substr(bin2hex(random_bytes($length / 2)), 0, $length));
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}
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}
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