如何在PHP中存储和检索特定于语言的文本？

Question

I'm currently in the process of building a web application which will be used by people in different countries

Currently all the messages that I output (i.e. errors etc) are in English.

What is the best way to store language constants and retrieve them?

It's quite likely that the messages may need bits of information injected into them too like data the user entered etc,

For example we might have the error:

The email address '[e-mail]' was not a valid email address.

Answer 1

GNU gettext provides tools and a framework for doing this. This is a decent article about using gettext in PHP.