load_plugin_textdomain() no back compatibility

[Tkama]

load_plugin_textdomain() uses get_user_locale() function if is_admin()===true, but get_user_locale() introduced in WP 4.7. And what with back compatibility?..

So, if user have Wordpress less then 4.7 and any plugin has function load_plugin_textdomain() in admin area - user get PHP fatal error - use undefined function...

Is it ok?

[dingo_bastard]

I have a plugin using load_plugin_textdomain(), and tested it on 4.2 version of WordPress, and the function didn't threw any errors. The get_user_locale() is used in a filter, so my bet is it's safe to use there...

[Tkama]

Oh, it's my mistake... If we have WP less then 4.7, then code of load_plugin_textdomain() will be another - without get_user_locale()...