32 lines
716 B
PHP
32 lines
716 B
PHP
<?php
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namespace App\Service\ServiceTrait\Common;
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use Random\RandomException;
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trait UserTrait
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{
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/**
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* @param int $userId
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* @return string
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* @throws RandomException
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*/
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protected function generateStableCode(int $userId): string
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{
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$chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
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$seed = $userId . random_bytes(16) . microtime(true);
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// 使用分段处理避免大数
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$hash = hash('sha256', $seed, true);
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$code = '';
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for ($i=0; $i<8; $i++) {
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// 每次取1字节数据（0-255）
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$byte = ord($hash[$i]);
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$code .= $chars[$byte % 62];
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}
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return $code;
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}
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} |