How do I write non-English text on image using php

How do I write non-English text on image using php

Here's my situation.
Mobile users have an option to switch their keyboards to a different language.
Some users might be using a chinese language keyboard, some might use Italian, some might use Indian hindi, or Indian Bengali etc etc.
Most are using default English keyboard.

Now I want to take the text they entered and put it on an image, as caption.
I know how to do this with English text.
That is no problem.

How do I do it if they are using some other language?
Is there a global font file I can use?

If not, where can I download those language font files which these devices are using?
And most important, how do I find out which language they typed in?

Any help is greatly appreciated.

 

best guess is to go to a fontograpgy site and ask them or post the question to google

 

This should not be very difficult. I do not need to translate, I just need proper font file I think. Text is already in the language of the user.