Online PHP editor | refs for isC0s

<?php $all = array( array( 'titulo' => 'Nome 1', 'itens' => array( 'item1', 'item2', 'item3') ), array( 'titulo' => 'Nome 2', 'itens' => array( 'item4', 'item5', 'item6') ), array( 'titulo' => 'Nome 4', 'itens' => array( 'item7', 'item8', 'item9') )); $result = []; foreach ($all as $row) { array_push($result, ...$row['itens']); } var_export($result);