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<?php
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2016 Spomky-Labs
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*/
namespace Jose\Util;
/**
* Class String.
final class StringUtil
{
* @param int $size
* @return string
public static function generateRandomBytes($size)
if (function_exists('random_bytes')) {
return random_bytes($size);
} elseif (function_exists('openssl_random_pseudo_bytes')) {
return openssl_random_pseudo_bytes($size);
} elseif (function_exists('mcrypt_create_iv')) {
return mcrypt_create_iv($size);
}
throw new \RuntimeException('Unable to create random bytes.');
Spomky-Labs /
jose
