• enorog

• May 6, 2014 at 12:14 am

You’re not using the correct piece of code. If you want to use date_i18n, you have to set the language of your WordPress to English. This is a WP specific function.

To use the setlocale method, use this code inside the loop (the setlocale on top is OK):

// FIRST, SET THE WAY YOU WANT TO FORMAT DATE
// DETAILS HERE - https://php.net/strftime
$dateformatstring = "%A le %d %B, %Y";

// THEN, CONVERT THE FIELD FROM ACF TO UNIX TIMESTAMP
$unixtimestamp = strtotime(get_field('data_picker'));

// NOW ECHO THE ENGLISH DATE USING PHP'S strftime
echo strftime($dateformatstring, $unixtimestamp);