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Viewing: Random.php

<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */
declare (strict_types=1);
namespace RectorPrefix202411\Nette\Utils;

use RectorPrefix202411\Nette;
use Random\Randomizer;
/**
 * Secure random string generator.
 */
final class Random
{
    use Nette\StaticClass;
    /**
     * Generates a random string of given length from characters specified in second argument.
     * Supports intervals, such as `0-9` or `A-Z`.
     */
    public static function generate(int $length = 10, string $charlist = '0-9a-z') : string
    {
        $charlist = \preg_replace_callback('#.-.#', function (array $m) : string {
            return \implode('', \range($m[0][0], $m[0][2]));
        }, $charlist);
        $charlist = \count_chars($charlist, 3);
        $chLen = \strlen($charlist);
        if ($length < 1) {
            throw new Nette\InvalidArgumentException('Length must be greater than zero.');
        } elseif ($chLen < 2) {
            throw new Nette\InvalidArgumentException('Character list must contain at least two chars.');
        } elseif (\PHP_VERSION_ID >= 80300) {
            return (new Randomizer())->getBytesFromString($charlist, $length);
        }
        $res = '';
        for ($i = 0; $i < $length; $i++) {
            $res .= $charlist[\random_int(0, $chLen - 1)];
        }
        return $res;
    }
}

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