Online PHP editor | output for UY1Wg

<?php $array = [ 'floorplans_0_valid_for_export' => 0, 'floorplans_0_title' => 'title 1', 'floorplans_0_house_area' => '40m²', 'floorplans_0_bedrooms' => 1, 'floorplans_1_valid_for_export' => 1, 'floorplans_1_title' => 'title xx', 'floorplans_1_house_area' => '90m²', 'floorplans_1_bedrooms' => '2', 'floorplans_2_valid_for_export' => 1, 'floorplans_2_title' => 'title 2', 'floorplans_2_house_area' => '50m²', 'floorplans_2_bedrooms' => 1, 'floorplans' => 3 ]; $labels = ['valid_for_export', 'title', 'house_area', 'bedrooms']; $result = []; for ($i = 0; $i < $array['floorplans']; ++$i) { if (!empty($array['floorplans_' . $i . '_valid_for_export'])) { foreach ($labels as $label) { $key = sprintf('floorplans_%s_%s', $i, $label); $result[$key] = $array[$key]; } } } var_export($result);