CC1: ' . esc_html( $cc1 ); } if ( ! empty( $cc2 ) ) { if ( ! empty( $output ) ) { $output .= '
'; } $output .= 'CC2: ' . esc_html( $cc2 ); } return $output; } /** * Make the column sortable (using CC1 meta). * * @param array $columns Sortable columns. * @return array Updated sortable columns. */ public function make_column_sortable( $columns ) { $columns['aisp_cc_email'] = 'cc_email_1'; return $columns; } }