As part of localization for our WordPress website we need to support Chinese simplified script. Not knowing anything about Chinese we did some research and used zh-CN (also known as zh-Hans).
Our client states this is incorrect and we should use: ch-cn (also known as ch-hans). We checked several language plugins and did some research on the internet but this code ch-cn seems pretty rare. Is my client wrong? He wants to use simplified script, chinese PRC
Many thanks!