News Feed
Sections




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

Igor Wiedler:
Binary parsing with PHP
September 25, 2012 @ 12:17:41

Igor Wiedler has a new post to his blog showing how to work with binary data in your PHP applications a few different built-in functions including unpack and bindec.

Binary operations in PHP are a bit strange. Since PHP was originally a templating layer for C code, it still has many of those C-isms. Lots of the function names map directly to C-level APIs, even if they work a bit differently sometimes. For example, PHP's strlen maps directly to STRLEN(3), and there are countless examples of this. However, as soon as it comes to dealing with binary data, things suddenly become very different.

He starts off looking at "the C way" to unpack a string (getting the ASCII values of each character) and shows how *not* to do it in PHP with ord. Instead he uses "unpack", bitwise operators and bindec to work with the actual binary data of the string.

0 comments voice your opinion now!
binary parse ord unpack tutorial bindec bitwise


blog comments powered by Disqus

Similar Posts

SitePoint PHP Blog: HHVM and Hack - Can We Expect Them to Replace PHP?

The Tutorial Blog: Adding security to CodeIgniter forms with a custom library class

NetTuts.com: Refactoring Legacy Code - Part 10: Dissecting Long Methods with Extractions

DevShed: Creating an RSS Reader: the Reader

Pathfinder Blog: PHP Spam Injection First Aid with Apache ModSecurity


Community Events





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


laravel release series library symfony community language framework voicesoftheelephpant install api deployment interview tips bugfix introduction package opinion list podcast

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