How to get the locale or current location of the user in facebook iframe application? -

I am developing an IFrame application in Facebook. What is the syntax for obtaining the user's locale? I am using PHP Client Library.

I tried this piece of code:

   Users_getInfo ($ User_id, 'name, hometown_location'); $ Locale = $ user_details [0] ['hometown_space'] ['city']; Echo "Location:". $ Location; ? & Gt;  

But I get the following error:

  Critical error: The offset string can not be used as an array in C: \ xampplite \ Htdocs \ FacebookApp \ deals  

Some people help me on this.

New Experiment:

  $ me = $ fb-> ; API ('/ m'); $ Locale = $ me ['locale'];