News Feed
Sections




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

Marcus Bointon's Blog:
PHP Base-62 Encoding
August 11, 2011 @ 11:28:46

In a recent post Marcus Bointon looks at a hashing method that's not one as commonly used by developers as the usual base64 - base-62 encoding that plays a bit nicer with things like URLs and emails due to the character set it allows.

There's a really horrible bug (though they won't call it that!) in Apache's mod_rewrite that means that urlencoded inputs in rewrites get unescaped in their transformation to output patterns. The bug actually remains unfixed, though a workaround first appeared in Apache 2.2.12. [...] Base-62 is interesting as it can be made safe for use in URLs, DNS, email addresses and pathnames, unlike any available encoding of base-64, as it only includes [0-9A-Za-z].

He originally wrote his own parser, but notes that now the BCMath and gmp extensions make it much simpler, just a call to gmp_strval with gmp_init. This method works, but it's still not quite all he wanted so he created his own encoder to do the job.

0 comments voice your opinion now!
base62 base64 encode gmp mcmath extension hash


blog comments powered by Disqus

Similar Posts

Christoph Hochstrasser: PHP Socket Programming, done the Right Way (tm)

Michael Kimsal's Blog: Why do browsers still not have file upload progress meters?

Pierre\'s Blog: Zip, complete rewrite and write mode added

PHP-GTK Community Site: PHP-GTK 2 Beta !

Jacob Santos' Blog: The Sexy Filter Extension and Fear of Regex


Community Events





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


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

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