Somewhere in my code I need to know what is the current language and display a certain custom field or another one based on this knowledge.
How can I know this information ?
WPML defines constants that you can use go get the current language:
ICL_LANGUAGE_CODE– current language code (eg: en,fr,sp).
ICL_LANGUAGE_NAME_EN– Name of the current language in English (eg: English, French. Spanish).
ICL_LANGUAGE_NAME– Name of current language, in the current language (eg: English, Français, Español).