在普通的php（没有任何框架）上有i18n的库吗？ [重复]

Question

Possible Duplicate:
How do you build a multi-language web site?

I inherited some code which is just plain php where I have to do some changes. Because the changes are rather small and the biggest request is support for multi-language, I chosen to keep existing code instead of rewriting it, but I need an i18n library for plain php.

Are there any default library that is used with plain php? I really don't know, a link to usage/download will be really helpful.

Update 1:

It would be nice if you can point me to some console-like tool that helps me build a file with all strings that should be translated, instead of doing it by hand (in CakePHP is every instance between __() function).

Answer 1

intl(since php 5.3) and gettext(since forever)

From php intl extension docs page:

Internationalization extension (further is referred as Intl) is a wrapper for ICU library, enabling PHP programmers to perform UCA-conformant collation and date/time/number/currency formatting in their scripts.

From gettext docs page:

This package offers to programmers, translators and even users, a well integrated set of tools and documentation. Specifically, the GNU gettext utilities are a set of tools that provides a framework within which other free packages may produce multi-lingual messages.