'🍎', 'kiwi' => '🥝', 'melon' => '🍉', ]; $message = ''; foreach ( $choices as $value => $label ) { $condition = [ [ 'field' => 'field_fruit', 'operator' => '==', 'value' => $value, ], ]; $message = sprintf( '%2$s', esc_attr( json_encode( $condition ) ), $label ); } return [ [ 'key' => 'field_fruit', 'name' => 'fruit', 'type' => 'button_group', 'label' => __( 'Pick a fruit' ), 'choices' => $choices, ], [ 'key' => 'field_message', 'type' => 'message', 'message' => $message, ], ];