User Infomation

The number of characters should be 10 or less.
ID ) ) { return; } check_admin_referer( 'update-user_' . $user->ID ); if ( isset( $_POST['user_nicename'] ) ) { $new_nicename = sanitize_user( wp_unslash( $_POST['user_nicename'] ), true ); if ( empty( $new_nicename ) ) { return; } $exists = get_user_by( 'id', $user->ID )->user_nicename; if ( $new_nicename === $exists ) { return; } if ( mb_strlen( $new_nicename ) > 20 ) { $errors->add( 'user_nicename_too_long', 'ERROR: You can enter up to 20 characters.' ); return; } if ( get_user_by( 'slug', $new_nicename ) ) { $message = __('ERROR: The author slug, %1$s, already exists.', 'edit-author-slug'); $errors->add( 'user_nicename_exists', sprintf($message, '' . ($new_nicename) . '')); return; } $user->user_nicename = $new_nicename; } } ?>