what are these language files for? (I guess it is for localizing javascript?) You guessed right. The JSONs are for use specifically with the new wp_set_script_translations function in WordPress 5. is it necessary to add/commit/push them to the live server? They are used at runtime, just like .mo files are. So yes, add them to … Read more
My suggestions: Check language of the wordpress settings, it must be Dutch. Disable the plugin just upload .mo files in /languages/. You must check your theme! Maybe overriding default language is the problem! or …
You’ve already given the answer using auto_update_translation. I wasn’t aware this didn’t work after manual updates (and haven’t tried it) but perhaps also look at async_update_translation which according the documentation “Asynchronously upgrades language packs after other upgrades have been made”. Regardless of the above, I recommend a different approach whereby the community translations are still … Read more
I would opt for readability and use a rather verbose solution: if ( 1 == $hours and 1 == $mins ) { _e( ‘One hour and one minute’, ‘your_text_domain’ ); } elseif ( 1 == $hours ) { printf( __( ‘One hour and %d minutes’, ‘your_text_domain’ ), $mins ); } elseif ( 1 == $mins … Read more
You can get a list of available languages with get_available_languages( $dir ). It returns an array with all .mo files where the names does not start with ‘continents-cities’, ‘ms-‘ or admin-. To get a readable name for the file use format_code_lang( $code ). If you scan a directory for language files and get an array … Read more
I cannot find the reference for hard answer on this, but likely it can handle large strings just fine. From quick look at WP’s own files somethings like this: __(‘Your account has been activated. You may now <a href=”https://wordpress.stackexchange.com/questions/174179/%1$s”>log in</a> to the site using your chosen username of “%2$s”. Please check your email inbox at … Read more
_x() let’s you add a context to your strings. This is useful when you are using the same string in different places. This string may need different translations depending on the language. Your example would be : echo ‘a1 in context 1 ‘ . _x(‘a1’, ‘context1’, ‘mydomain’); echo ‘a1 in context 2 ‘ . _x(‘a1’, … Read more
The locale filter that allows you to set the locale specifically. You can check the current page, and alter the value based on that. add_filter(‘locale’, ‘change_my_locale’); function change_my_locale( $locale ) { if ( is_page(‘slug-here’) ) { return ‘en_US’; } return $locale; }
General difference between esc_attr and esc_attr_* The difference between esc_attr() and esc_attr__(), esc_attr_e(), esc_attr_x() is that the later three are just “wrappers” or in other words higher level API functions. When you look at the source of the later three, then you’ll see that those put in a single argument wrapped in a call to … Read more
Use the first option. translated strings are supposed to be “raw”, and escaped only by the calling function. In addition many will not understand what ' mean and how to translate it without looking at the actual page which can be annoying.