In multi-language sites i need to get meta tag for different sites. In dashboard, we can get url-name specification, page-selection and favicon. Along with that i need to add meta tag - language. this can be done through php function. So kindly help me with this...

https://github.com/rmxdave/multisite/blob/master/models/ms_router.ph... -> this is an example link, in which they get value for url, home page and favicon.

I just created a simple label to mention the language content type. But I didn't know to apply logic for that. This is the image for which i required php function for language!

Thanks in advance.