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优化uuid生成

pull/497/head
Karson 2025-06-30 11:24:37 +08:00
parent ea8ea715b9
commit d1dfff490b
1 changed files with 5 additions and 6 deletions
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11
extend/fast/Random.php
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@ -95,25 +95,24 @@ class Random
*/ */
public static function username(): string public static function username(): string
{ {
return 'user_'.bin2hex(random_bytes(8)) . substr(uniqid(), -8); return 'user_' . bin2hex(random_bytes(8)) . substr(uniqid(), -8);
} }
/** /**
* 获取全球唯一标识 * 获取全球唯一标识
* @param string $tag 标识
* @return string * @return string
*/ */
public static function uuid(): string public static function uuid($tag = ''): string
{ {
return sprintf( return sprintf(
'%04x%04x-%04x-%04x-%04x-%04x%04x%04x', '%04x%04x-%04x-%04x-%04x-%12s',
mt_rand(0, 0xffff), mt_rand(0, 0xffff),
mt_rand(0, 0xffff), mt_rand(0, 0xffff),
mt_rand(0, 0xffff), mt_rand(0, 0xffff),
mt_rand(0, 0x0fff) | 0x4000, mt_rand(0, 0x0fff) | 0x4000,
mt_rand(0, 0x3fff) | 0x8000, mt_rand(0, 0x3fff) | 0x8000,
mt_rand(0, 0xffff), substr(bin2hex(random_bytes(8)), 0, 6) . substr(md5(uniqid($tag ?: mt_rand(), true)), 0, 6)
mt_rand(0, 0xffff),
mt_rand(0, 0xffff)
); );
} }
} }