Air-Quality-Web/lib/SBRL/Generators.php

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<?php
namespace SBRL;
class Generators {
public static function crypto_secure_id(int $length = 64) { // 64 = 32
$length = ($length < 4) ? 4 : $length;
return bin2hex(random_bytes(($length-($length%2))/2));
}
}