Crypt_Random

# Procedural File: Random.php

Source Location: /lib/3rdParty/phpseclib/Crypt/Random.php

## Page Details:

Random Number Generator

PHP versions 4 and 5

Here's a short example of how to use this library:

1. <?php
2. include('Crypt/Random.php');
4. echo crypt_random ();
5. ?>

LICENSE: This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

#### Tags:

author: | Jim Wigginton <terrafrost@php.net>
version: | $Id: Random.php,v 1.1 2010/05/14 14:06:16 gruberroland Exp $
copyright: | MMVII Jim Wigginton
link: | http://phpseclib.sourceforge.net
license: | http://www.gnu.org/licenses/lgpl.txt

### crypt_random [line 57]

`Integer crypt_random( [optional $min = 0], [optional $max = 0x7FFFFFFF])`

Generate a random value.

On 32-bit machines, the largest distance that can exist between $min and $max is 2**31. If $min and $max are farther apart than that then the last ($max - range) numbers.

Depending on how this is being used, it may be worth while to write a replacement. For example, a PHP-based web app that stores its data in an SQL database can collect more entropy than this function can.

#### Tags:

access: | public

#### Parameters

optional | $min | Integer $min
optional | $max | Integer $max

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Documentation generated on Thu, 28 Oct 2010 21:00:30 +0200 by phpDocumentor 1.4.1