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<?php
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namespace App\Services;
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class RegistrationCodeService
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{
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public function make(): string
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{
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// REG-XXXXXX (base32-ish)
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$alphabet = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';
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$s = '';
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for ($i=0;$i<5;$i++){
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$s .= $alphabet[random_int(0, strlen($alphabet)-1)];
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}
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return 'REG-' . $s;
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}
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}
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