Online PHP editor | output for 0ubvt

<?php const URLS = [ "http://site.com/", "http://site.com/save", "http://site.com/save/results", "http://site.com/save/results/path", "http://site.com/path/save/results", "http://site.com/save/path", "http://site.com/path/results", "http://site.com/Crawler4", "http://site.com/Crawler", ]; $seen = []; $siteStructure = []; foreach (URLS as $url) { $domainUrl1 = parse_url($url, PHP_URL_SCHEME); $domainUrl2 = parse_url($url, PHP_URL_HOST); $domainPath = parse_url($url, PHP_URL_PATH); $paths = preg_split('/[^a-zA-Z0-9]+/', $domainPath, 0, PREG_SPLIT_NO_EMPTY); $domainUrl = $domainUrl1 . '://' . $domainUrl2; array_unshift($paths, $domainUrl); $paths = array_flip($paths); foreach ($paths as $key => $value){ if ($key != [0-9] && is_array($value) == false){ if ($value == 0){ $siteStructure[$key] = []; } elseif ($value >= 0 ){ $keybefore = $value - 1; $keys = array_keys($paths)[$keybefore]; $siteStructure[$keys] = [$key => $keybefore]; } } } } var_dump($siteStructure);