Online PHP editor | refs for Ai9Uh

<?php $directoryTree = [ 'accounting' => [ 'documents' => [ ], 'losses' => [ ], 'profit' => [ ] ], 'legal' => [ 'documents' => [ ] ] ]; $fileList = [ [ 'name' => 'Overview.doc', 'dir_path' => [] ], [ 'name' => 'Incorporation.doc', 'dir_path' => [] ], [ 'name' => 'Profit And Loss.xls', 'dir_path' => ['accounting'] ], [ 'name' => 'Profit 1.xls', 'dir_path' => ['accounting', 'profit'] ], [ 'name' => 'Loss 1.xls', 'dir_path' => ['accounting', 'losses'] ], [ 'name' => 'TOS Draft.doc', 'dir_path' => ['legal', 'documents'] ], [ 'name' => 'Accounting Doc.pdf', 'dir_path' => ['accounting', 'documents'] ], ]; function addFiles2DirectoryTree(array $files, array $directoryTree){ foreach($files as $file) assignFileToPath($file["name"], $file["dir_path"], $directoryTree); return $directoryTree; } function assignFileToPath($filename, $path, &$directoryTree){ while($key = array_shift($path)) $directoryTree = &$directoryTree[$key]; $directoryTree[] = $filename; } $finalOutput = addFiles2DirectoryTree($fileList, $directoryTree); print_r($finalOutput);