问题
I am developing iOS application and I need base_convert function. Application is communicating with PHP server using base_convert, too. In PHP I use this:
base_convert($something,16,36) and base_convert($something,36,16)
I search for something like I use in PHP, but for Xcode (iOS application). Thank you.
回答1:
there is a C++ implementation here:
http://thinkdiff.net/mixed/base-conversion-handle-upto-36-bases/
that will convert back and forth with bases up to 36. Not sure if you need more than that.
回答2:
There is a complete wikepedia page devoted to Base 36 with various forms of source code that you could adapt (for example the C code should just drop straight in with no modification but is soooo not objective-c)
There is also how to convert Decimal to base36 which only does a one-way conversion, but the code is objective-c, so you could get an idea on how to adapt the wikepedia code.
As to why base 36 I learnt:
Base 36 is therefore the most compact case-insensitive alphanumeric numeral system using ASCII characters
回答3:
Adapted the code David Hope suggested into Objective-C, here:
https://gist.github.com/furkanmustafa/5660086
来源：https://stackoverflow.com/questions/14613548/xcode-base-convert