Online PHP editor | output for A1J0T

<?php $array = ["farm"=> [ "horse"=> [ "rabbit"=> [ "name"=> "alan", "age"=> "21", "size"=> "166", "gender"=> "f" ], ] ] ]; function createList($array, $keySearch, $path=null) { $result = []; foreach ($array as $key => $item) { $basePath = $path === null ? $key : $path. "/" . $key; if (stripos($key, $keySearch) !== false && is_array($item)){ $result[] = ['key' => $key, 'basePath' => $basePath]; } if(is_array($item)) $result = array_merge($result, createList($item, $keySearch, $basePath)); } return $result; } $keySearch = 'a'; $res = createList($array, $keySearch); echo '<pre>'; print_r($res);