News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

SitePoint PHP Blog:
Arbitrary Precision and Big Numbers in PHP
January 30, 2014 @ 10:20:46

The SitePoint PHP blog has a new post by Taylor Ren looks at big numbers in PHP and the functionality it has to handle arbitrary precision via three modules - GMP. BC Math and php-bignumbers.

In this article, we will review the PHP capability to provide arbitrary precision number calculation / big integer calculation by reviewing 3 PHP modules: GMP, BC Math and php-bignumbers. We will demonstrate two real-world examples to see the powers/limitations of each. The first one will be calculating PI to arbitrary precision - well, for the sake of the article, we will restrict the precision, say, to 1000 digits; the second will be a simple demonstration on RSA encryption/decryption.

He briefly looks at how to get the tools installed (via at-get or Composer) and a sample script to ensure that they're all included correctly and working. He includes a comparison between the three libraries, listing both strengths and weaknesses relative to the others. He then gets a bit more in-depth and shows how to calculate PI with each option (code is on GitHub) and the results of the benchmarking. He also includes a second example of calculating the RSA algorithm based on their process.

0 comments voice your opinion now!
arbitrary precision big number gmp phpbignumbers bcmath tutorial

Link: http://www.sitepoint.com/arbitrary-precision-big-numbers-php/

blog comments powered by Disqus

Similar Posts

VoidWeb.com: PHP Clustering using Apache httpd mod_proxy

The Bakery Blog: SwiftMailer Component Tutorial

IBM developerWorks: PHP encryption for the common man

IBM developerWorks: Squash bugs in PHP applications with Zend Debugger

David Adams: Zero to Jenkins - PHP Continuous Integration


Community Events





Don't see your event here?
Let us know!


api language list developer tips framework zendserver interview introduction community series release conference symfony laravel voicesoftheelephpant bugfix library podcast deployment

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework