How to allow wordpress to create username with symbols like +
We need to add a filter to ‘sanitize_user’. Here is the sample code that will work for you. add_filter( ‘sanitize_user’, ‘tubs_sanitize_user’, 10, 3); function tubs_sanitize_user($username, $raw_username, $strict) { $new_username = strip_tags($raw_username); // Kill octets $new_username = preg_replace(‘|%([a-fA-F0-9][a-fA-F0-9])|’, ”, $new_username); $new_username = preg_replace(‘/&.?;/’, ”, $new_username); // Kill entities // If strict, reduce to ASCII for max … Read more