Online PHP editor | refs for ou6rb

<?php const ID_INDEX = 0; const NAME_INDEX = 1; $sections = array(array(1, 'Section 1'), array(2, 'Section B'), array(3, 'Just section')); $rubriques = array(array(1, 'Rubiq'), array(2, 'Rubrique'), array(3, 'Ruby')); $categories = array(array(1, 'Category A'), array(2, 'Category B'), array(3, 'Category C')); $output = array(); foreach($sections as $section) { $output[$section[NAME_INDEX]] = array($section[ID_INDEX]); foreach($rubriques as $rubrique) { $output[$section[NAME_INDEX]][$rubrique[NAME_INDEX]] = array($rubrique[ID_INDEX]); foreach($categories as $category) { $output[$section[NAME_INDEX]][$rubrique[NAME_INDEX]][$category[NAME_INDEX]][] = $category[ID_INDEX]; } } } var_dump($output);