Change HTML language from en-US in to en-GB in WordPress?

5 comments

1. Define the language attribute using:

   define ('WPLANG', 'en-GB');
   

   You can get more information on it at
   http://codex.wordpress.org/Installing_WordPress_in_Your_Language

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2. As for recent version of WordPress 4+ this option

   define ('WPLANG', 'en-GB');
   

   is deprecated, to update the language you need to follow either one of the following methods:

   Method 1

   Inside the wp-config.php put the following line:

   $locale='en_GB';
   

   Method 2 (recommended)

   In database, XY_options table to and set an option of WPLAN to en_GB (where XY is the table prefix for your wordpress installation)

   exemple queries:

   insert

   INSERT INTO `XY_options` (`option_id`, `option_name`, `option_value`, `autoload`) VALUES (NULL, 'WPLANG', 'en_GB', 'yes');
   

   update

   UPDATE `XY_options` SET `option_value` = 'en_GB' WHERE `option_name` = 'WPLANG';
   

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3. I am using WordPress 5.1.1 , at wp-config.php, choose right top line, put

   $locale='vi_VN';
   

   (For example, in case of Vietnamese language)

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4. A bit late in the discussion here. I had the same need today and found that there is a plugin available for that: CHL-Change HTML Lang. The language of the backend/admin interface can be in one language while the posts/articles/portfolios can be set in another language. After activating the plugin hit Settings→General and change the HTML language tag, i.e., en-US, etc.

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5. Another way is with add_filter:

   add_filter( 'language_attributes', 'setLangAttr' );
   
   function setLangAttr() {
       return 'lang="en-GB"';
   }       
   

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