diff --git a/include/network.php b/include/network.php index 8e076aa600..d27a090fe2 100644 --- a/include/network.php +++ b/include/network.php @@ -1,12 +1,29 @@ supply Accept: header with 'accept_content' as the value - * * \b timeout => int seconds, default system config value or 60 seconds - * * \b http_auth => username:password - * * \b novalidate => do not validate SSL certs, default is to validate using our CA list - * * \b nobody => only return the header - * * \b cookiejar => path to cookie jar file + * 'accept_content' => supply Accept: header with 'accept_content' as the value + * 'timeout' => int Timeout in seconds, default system config value or 60 seconds + * 'http_auth' => username:password + * 'novalidate' => do not validate SSL certs, default is to validate using our CA list + * 'nobody' => only return the header + * 'cookiejar' => path to cookie jar file * * @return array an assoziative array with: - * * \e int \b return_code => HTTP return code or 0 if timeout or failure - * * \e boolean \b success => boolean true (if HTTP 2xx result) or false - * * \e string \b redirect_url => in case of redirect, content was finally retrieved from this URL - * * \e string \b header => HTTP headers - * * \e string \b body => fetched content + * int 'return_code' => HTTP return code or 0 if timeout or failure + * boolean 'success' => boolean true (if HTTP 2xx result) or false + * string 'redirect_url' => in case of redirect, content was finally retrieved from this URL + * string 'header' => HTTP headers + * string 'body' => fetched content */ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { @@ -66,7 +80,7 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { curl_setopt($ch, CURLOPT_COOKIEFILE, $opts["cookiejar"]); } -// These settings aren't needed. We're following the location already. +// These settings aren't needed. We're following the location already. // @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // @curl_setopt($ch, CURLOPT_MAXREDIRS, 5); @@ -93,6 +107,7 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { $curl_time = intval(get_config('system','curl_timeout')); @curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60)); } + // by default we will allow self-signed certs // but you can override this @@ -192,11 +207,21 @@ function z_fetch_url($url,$binary = false, &$redirects = 0, $opts=array()) { return($ret); -}} +} // post request to $url. $params is an array of post variables. -if(! function_exists('post_url')) { +/** + * @brief Post request to $url + * + * @param string $url URL to post + * @param mixed $params + * @param string $headers HTTP headers + * @param integer $redirects Recursion counter for internal use - default = 0 + * @param integer $timeout The timeout in seconds, default system config value or 60 seconds + * + * @return string The content + */ function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0) { $stamp1 = microtime(true); @@ -294,13 +319,12 @@ function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0) logger("post_url: end ".$url, LOGGER_DATA); return($body); -}} +} // Generic XML return // Outputs a basic dfrn XML status structure to STDOUT, with a variable // of $st and an optional text of $message and terminates the current process. -if(! function_exists('xml_status')) { function xml_status($st, $message = '') { $xml_message = ((strlen($message)) ? "\t" . xmlify($message) . "\r\n" : ''); @@ -312,12 +336,20 @@ function xml_status($st, $message = '') { echo ''."\r\n"; echo "\r\n\t$st\r\n$xml_message\r\n"; killme(); -}} +} -if(! function_exists('http_status_exit')) { +/** + * @brief Send HTTP status header and exit. + * + * @param integer $val HTTP status result value + * @param array $description optional message + * 'title' => header title + * 'description' => optional message + */ + function http_status_exit($val, $description = array()) { - $err = ''; + $err = ''; if($val >= 400) { $err = 'Error'; if (!isset($description["title"])) @@ -337,59 +369,13 @@ function http_status_exit($val, $description = array()) { killme(); -}} - - -// convert an XML document to a normalised, case-corrected array -// used by webfinger - -if(! function_exists('convert_xml_element_to_array')) { -function convert_xml_element_to_array($xml_element, &$recursion_depth=0) { - - // If we're getting too deep, bail out - if ($recursion_depth > 512) { - return(null); - } - - if (!is_string($xml_element) && - !is_array($xml_element) && - (get_class($xml_element) == 'SimpleXMLElement')) { - $xml_element_copy = $xml_element; - $xml_element = get_object_vars($xml_element); - } - - if (is_array($xml_element)) { - $result_array = array(); - if (count($xml_element) <= 0) { - return (trim(strval($xml_element_copy))); - } - - foreach($xml_element as $key=>$value) { - - $recursion_depth++; - $result_array[strtolower($key)] = - convert_xml_element_to_array($value, $recursion_depth); - $recursion_depth--; - } - if ($recursion_depth == 0) { - $temp_array = $result_array; - $result_array = array( - strtolower($xml_element_copy->getName()) => $temp_array, - ); - } - - return ($result_array); - - } else { - return (trim(strval($xml_element))); - } -}} +} // Given an email style address, perform webfinger lookup and // return the resulting DFRN profile URL, or if no DFRN profile URL // is located, returns an OStatus subscription template (prefixed // with the string 'stat:' to identify it as on OStatus template). -// If this isn't an email style address just return $s. +// If this isn't an email style address just return $webbie. // Return an empty string if email-style addresses but webfinger fails, // or if the resultant personal XRD doesn't contain a supported // subscription/friend-request attribute. @@ -397,15 +383,14 @@ function convert_xml_element_to_array($xml_element, &$recursion_depth=0) { // amended 7/9/2011 to return an hcard which could save potentially loading // a lengthy content page to scrape dfrn attributes -if(! function_exists('webfinger_dfrn')) { -function webfinger_dfrn($s,&$hcard) { - if(! strstr($s,'@')) { - return $s; +function webfinger_dfrn($webbie,&$hcard) { + if(! strstr($webbie,'@')) { + return $webbie; } $profile_link = ''; - $links = webfinger($s); - logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA); + $links = webfinger($webbie); + logger('webfinger_dfrn: ' . $webbie . ':' . print_r($links,true), LOGGER_DATA); if(count($links)) { foreach($links as $link) { if($link['@attributes']['rel'] === NAMESPACE_DFRN) @@ -417,29 +402,32 @@ function webfinger_dfrn($s,&$hcard) { } } return $profile_link; -}} +} -// Given an email style address, perform webfinger lookup and -// return the array of link attributes from the personal XRD file. -// On error/failure return an empty array. - - -if(! function_exists('webfinger')) { -function webfinger($s, $debug = false) { +/** + * @brief Perform webfinger lookup on an email style address + * + * @param string $webbi An email style address + * @param boolean $debug + * + * @return array of link attributes from the personal XRD file + * empty array on error/failure + */ +function webfinger($webbie, $debug = false) { $host = ''; - if(strstr($s,'@')) { - $host = substr($s,strpos($s,'@') + 1); + if(strstr($webbie,'@')) { + $host = substr($webbie,strpos($webbie,'@') + 1); } if(strlen($host)) { $tpl = fetch_lrdd_template($host); logger('webfinger: lrdd template: ' . $tpl); if(strlen($tpl)) { - $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl); + $pxrd = str_replace('{uri}', urlencode('acct:' . $webbie), $tpl); logger('webfinger: pxrd: ' . $pxrd); $links = fetch_xrd_links($pxrd); if(! count($links)) { // try with double slashes - $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl); + $pxrd = str_replace('{uri}', urlencode('acct://' . $webbie), $tpl); logger('webfinger: pxrd: ' . $pxrd); $links = fetch_xrd_links($pxrd); } @@ -447,9 +435,8 @@ function webfinger($s, $debug = false) { } } return array(); -}} +} -if(! function_exists('lrdd')) { function lrdd($uri, $debug = false) { $a = get_app(); @@ -494,7 +481,7 @@ function lrdd($uri, $debug = false) { if(! $h) return array(); - $arr = convert_xml_element_to_array($h); + $arr = xml::element_to_array($h); if(isset($arr['xrd']['property'])) { $property = $arr['crd']['property']; @@ -618,15 +605,12 @@ function lrdd($uri, $debug = false) { return array(); -}} - - +} // Given a host name, locate the LRDD template from that // host. Returns the LRDD template or an empty string on // error/failure. -if(! function_exists('fetch_lrdd_template')) { function fetch_lrdd_template($host) { $tpl = ''; @@ -648,13 +632,15 @@ function fetch_lrdd_template($host) { if(! strpos($tpl,'{uri}')) $tpl = ''; return $tpl; -}} +} -// Given a URL, retrieve the page as an XRD document. -// Return an array of links. -// on error/failure return empty array. - -if(! function_exists('fetch_xrd_links')) { +/** + * @brief Given a URL, retrieve the page as an XRD document. + * + * @param string $url An url + * @return array of links + * return empty array on error/failure + */ function fetch_xrd_links($url) { $xrd_timeout = intval(get_config('system','xrd_timeout')); @@ -673,7 +659,7 @@ function fetch_xrd_links($url) { if(! $h) return array(); - $arr = convert_xml_element_to_array($h); + $arr = xml::element_to_array($h); $links = array(); @@ -701,14 +687,17 @@ function fetch_xrd_links($url) { return $links; -}} +} - -// Take a URL from the wild, prepend http:// if necessary -// and check DNS to see if it's real (or check if is a valid IP address) -// return true if it's OK, false if something is wrong with it - -if(! function_exists('validate_url')) { +/** + * @brief Check URL to se if ts's real + * + * Take a URL from the wild, prepend http:// if necessary + * and check DNS to see if it's real (or check if is a valid IP address) + * + * @param string $url The URL to be validated + * @return boolean True if it's a valid URL, fals if something wrong with it + */ function validate_url(&$url) { if(get_config('system','disable_url_validation')) @@ -724,11 +713,14 @@ function validate_url(&$url) { return true; } return false; -}} +} -// checks that email is an actual resolvable internet address - -if(! function_exists('validate_email')) { +/** + * @brief Checks that email is an actual resolvable internet address + * + * @param string $addr The email address + * @return boolean True if it's a valid email address, false if it's not + */ function validate_email($addr) { if(get_config('system','disable_email_validation')) @@ -742,14 +734,17 @@ function validate_email($addr) { return true; } return false; -}} +} -// Check $url against our list of allowed sites, -// wildcards allowed. If allowed_sites is unset return true; -// If url is allowed, return true. -// otherwise, return false - -if(! function_exists('allowed_url')) { +/** + * @brief Check if URL is allowed + * + * Check $url against our list of allowed sites, + * wildcards allowed. If allowed_sites is unset return true; + * + * @param string $url URL which get tested + * @return boolean True if url is allowed otherwise return false + */ function allowed_url($url) { $h = @parse_url($url); @@ -784,14 +779,17 @@ function allowed_url($url) { } } return $found; -}} +} -// check if email address is allowed to register here. -// Compare against our list (wildcards allowed). -// Returns false if not allowed, true if allowed or if -// allowed list is not configured. - -if(! function_exists('allowed_email')) { +/** + * @brief Check if email address is allowed to register here. + * + * Compare against our list (wildcards allowed). + * + * @param type $email + * @return boolean False if not allowed, true if allowed + * or if allowed list is not configured + */ function allowed_email($email) { @@ -818,10 +816,8 @@ function allowed_email($email) { } } return $found; -}} +} - -if(! function_exists('avatar_img')) { function avatar_img($email) { $a = get_app(); @@ -838,11 +834,11 @@ function avatar_img($email) { logger('Avatar: ' . $avatar['email'] . ' ' . $avatar['url'], LOGGER_DEBUG); return $avatar['url']; -}} +} -if(! function_exists('parse_xml_string')) { function parse_xml_string($s,$strict = true) { + /// @todo Move this function to the xml class if($strict) { if(! strstr($s,'code . " at " . $err->line . ":" . $err->column . " : " . $err->message, LOGGER_DATA); - libxml_clear_errors(); - return; - } - - //Initializations - $xml_array = array(); - $parents = array(); - $opened_tags = array(); - $arr = array(); - - $current = &$xml_array; // Reference - - // Go through the tags. - $repeated_tag_index = array(); // Multiple tags with same name will be turned into an array - foreach($xml_values as $data) { - unset($attributes,$value); // Remove existing values, or there will be trouble - - // This command will extract these variables into the foreach scope - // tag(string), type(string), level(int), attributes(array). - extract($data); // We could use the array by itself, but this cooler. - - $result = array(); - $attributes_data = array(); - - if(isset($value)) { - if($priority == 'tag') $result = $value; - else $result['value'] = $value; // Put the value in a assoc array if we are in the 'Attribute' mode - } - - //Set the attributes too. - if(isset($attributes) and $get_attributes) { - foreach($attributes as $attr => $val) { - if($priority == 'tag') $attributes_data[$attr] = $val; - else $result['@attributes'][$attr] = $val; // Set all the attributes in a array called 'attr' - } - } - - // See tag status and do the needed. - if($namespaces && strpos($tag,':')) { - $namespc = substr($tag,0,strrpos($tag,':')); - $tag = strtolower(substr($tag,strlen($namespc)+1)); - $result['@namespace'] = $namespc; - } - $tag = strtolower($tag); - - if($type == "open") { // The starting of the tag '' - $parent[$level-1] = &$current; - if(!is_array($current) or (!in_array($tag, array_keys($current)))) { // Insert New tag - $current[$tag] = $result; - if($attributes_data) $current[$tag. '_attr'] = $attributes_data; - $repeated_tag_index[$tag.'_'.$level] = 1; - - $current = &$current[$tag]; - - } else { // There was another element with the same tag name - - if(isset($current[$tag][0])) { // If there is a 0th element it is already an array - $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; - $repeated_tag_index[$tag.'_'.$level]++; - } else { // This section will make the value an array if multiple tags with the same name appear together - $current[$tag] = array($current[$tag],$result); // This will combine the existing item and the new item together to make an array - $repeated_tag_index[$tag.'_'.$level] = 2; - - if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well - $current[$tag]['0_attr'] = $current[$tag.'_attr']; - unset($current[$tag.'_attr']); - } - - } - $last_item_index = $repeated_tag_index[$tag.'_'.$level]-1; - $current = &$current[$tag][$last_item_index]; - } - - } elseif($type == "complete") { // Tags that ends in 1 line '' - //See if the key is already taken. - if(!isset($current[$tag])) { //New Key - $current[$tag] = $result; - $repeated_tag_index[$tag.'_'.$level] = 1; - if($priority == 'tag' and $attributes_data) $current[$tag. '_attr'] = $attributes_data; - - } else { // If taken, put all things inside a list(array) - if(isset($current[$tag][0]) and is_array($current[$tag])) { // If it is already an array... - - // ...push the new element into that array. - $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; - - if($priority == 'tag' and $get_attributes and $attributes_data) { - $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; - } - $repeated_tag_index[$tag.'_'.$level]++; - - } else { // If it is not an array... - $current[$tag] = array($current[$tag],$result); //...Make it an array using using the existing value and the new value - $repeated_tag_index[$tag.'_'.$level] = 1; - if($priority == 'tag' and $get_attributes) { - if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well - - $current[$tag]['0_attr'] = $current[$tag.'_attr']; - unset($current[$tag.'_attr']); - } - - if($attributes_data) { - $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; - } - } - $repeated_tag_index[$tag.'_'.$level]++; // 0 and 1 indexes are already taken - } - } - - } elseif($type == 'close') { // End of tag '' - $current = &$parent[$level-1]; - } - } - - return($xml_array); -} - function original_url($url, $depth=1, $fetchbody = false) { $a = get_app(); @@ -1263,7 +1094,6 @@ function original_url($url, $depth=1, $fetchbody = false) { return($url); } -if (!function_exists('short_link')) { function short_link($url) { require_once('library/slinky.php'); $slinky = new Slinky($url); @@ -1285,7 +1115,7 @@ function short_link($url) { $slinky->set_cascade(array(new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL())); } return $slinky->short(); -}}; +} /** * @brief Encodes content to json diff --git a/include/xml.php b/include/xml.php index 76ad88cf48..5cd322ed69 100644 --- a/include/xml.php +++ b/include/xml.php @@ -127,5 +127,227 @@ class xml { $element = self::create_element($doc, $element, $value, $attributes); $parent->appendChild($element); } + + /** + * @brief Convert an XML document to a normalised, case-corrected array + * used by webfinger + * + * @param object $xml_element The XML document + * @param integer $recursion_depth recursion counter for internal use - default 0 + * internal use, recursion counter + * + * @return array | sring The array from the xml element or the string + */ + public static function element_to_array($xml_element, &$recursion_depth=0) { + + // If we're getting too deep, bail out + if ($recursion_depth > 512) { + return(null); + } + + if (!is_string($xml_element) && + !is_array($xml_element) && + (get_class($xml_element) == 'SimpleXMLElement')) { + $xml_element_copy = $xml_element; + $xml_element = get_object_vars($xml_element); + } + + if (is_array($xml_element)) { + $result_array = array(); + if (count($xml_element) <= 0) { + return (trim(strval($xml_element_copy))); + } + + foreach($xml_element as $key=>$value) { + + $recursion_depth++; + $result_array[strtolower($key)] = + self::convert_element_to_array($value, $recursion_depth); + $recursion_depth--; + } + if ($recursion_depth == 0) { + $temp_array = $result_array; + $result_array = array( + strtolower($xml_element_copy->getName()) => $temp_array, + ); + } + + return ($result_array); + + } else { + return (trim(strval($xml_element))); + } + } + + /** + * @brief Convert the given XML text to an array in the XML structure. + * + * xml::to_array() will convert the given XML text to an array in the XML structure. + * Link: http://www.bin-co.com/php/scripts/xml2array/ + * Portions significantly re-written by mike@macgirvin.com for Friendica + * (namespaces, lowercase tags, get_attribute default changed, more...) + * + * Examples: $array = xml::to_array(file_get_contents('feed.xml')); + * $array = xml::to_array(file_get_contents('feed.xml', true, 1, 'attribute')); + * + * @param object $contents The XML text + * @param boolean $namespaces True or false include namespace information + * in the returned array as array elements. + * @param integer $get_attributes 1 or 0. If this is 1 the function will get the attributes as well as the tag values - + * this results in a different array structure in the return value. + * @param string $priority Can be 'tag' or 'attribute'. This will change the way the resulting + * array sturcture. For 'tag', the tags are given more importance. + * + * @return array The parsed XML in an array form. Use print_r() to see the resulting array structure. + */ + public static function to_array($contents, $namespaces = true, $get_attributes=1, $priority = 'attribute') { + if(!$contents) return array(); + + if(!function_exists('xml_parser_create')) { + logger('xml::to_array: parser function missing'); + return array(); + } + + + libxml_use_internal_errors(true); + libxml_clear_errors(); + + if($namespaces) + $parser = @xml_parser_create_ns("UTF-8",':'); + else + $parser = @xml_parser_create(); + + if(! $parser) { + logger('xml::to_array: xml_parser_create: no resource'); + return array(); + } + + xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); + // http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss + xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0); + xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1); + @xml_parse_into_struct($parser, trim($contents), $xml_values); + @xml_parser_free($parser); + + if(! $xml_values) { + logger('xml::to_array: libxml: parse error: ' . $contents, LOGGER_DATA); + foreach(libxml_get_errors() as $err) + logger('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message, LOGGER_DATA); + libxml_clear_errors(); + return; + } + + //Initializations + $xml_array = array(); + $parents = array(); + $opened_tags = array(); + $arr = array(); + + $current = &$xml_array; // Reference + + // Go through the tags. + $repeated_tag_index = array(); // Multiple tags with same name will be turned into an array + foreach($xml_values as $data) { + unset($attributes,$value); // Remove existing values, or there will be trouble + + // This command will extract these variables into the foreach scope + // tag(string), type(string), level(int), attributes(array). + extract($data); // We could use the array by itself, but this cooler. + + $result = array(); + $attributes_data = array(); + + if(isset($value)) { + if($priority == 'tag') $result = $value; + else $result['value'] = $value; // Put the value in a assoc array if we are in the 'Attribute' mode + } + + //Set the attributes too. + if(isset($attributes) and $get_attributes) { + foreach($attributes as $attr => $val) { + if($priority == 'tag') $attributes_data[$attr] = $val; + else $result['@attributes'][$attr] = $val; // Set all the attributes in a array called 'attr' + } + } + + // See tag status and do the needed. + if($namespaces && strpos($tag,':')) { + $namespc = substr($tag,0,strrpos($tag,':')); + $tag = strtolower(substr($tag,strlen($namespc)+1)); + $result['@namespace'] = $namespc; + } + $tag = strtolower($tag); + + if($type == "open") { // The starting of the tag '' + $parent[$level-1] = &$current; + if(!is_array($current) or (!in_array($tag, array_keys($current)))) { // Insert New tag + $current[$tag] = $result; + if($attributes_data) $current[$tag. '_attr'] = $attributes_data; + $repeated_tag_index[$tag.'_'.$level] = 1; + + $current = &$current[$tag]; + + } else { // There was another element with the same tag name + + if(isset($current[$tag][0])) { // If there is a 0th element it is already an array + $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; + $repeated_tag_index[$tag.'_'.$level]++; + } else { // This section will make the value an array if multiple tags with the same name appear together + $current[$tag] = array($current[$tag],$result); // This will combine the existing item and the new item together to make an array + $repeated_tag_index[$tag.'_'.$level] = 2; + + if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well + $current[$tag]['0_attr'] = $current[$tag.'_attr']; + unset($current[$tag.'_attr']); + } + + } + $last_item_index = $repeated_tag_index[$tag.'_'.$level]-1; + $current = &$current[$tag][$last_item_index]; + } + + } elseif($type == "complete") { // Tags that ends in 1 line '' + //See if the key is already taken. + if(!isset($current[$tag])) { //New Key + $current[$tag] = $result; + $repeated_tag_index[$tag.'_'.$level] = 1; + if($priority == 'tag' and $attributes_data) $current[$tag. '_attr'] = $attributes_data; + + } else { // If taken, put all things inside a list(array) + if(isset($current[$tag][0]) and is_array($current[$tag])) { // If it is already an array... + + // ...push the new element into that array. + $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; + + if($priority == 'tag' and $get_attributes and $attributes_data) { + $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; + } + $repeated_tag_index[$tag.'_'.$level]++; + + } else { // If it is not an array... + $current[$tag] = array($current[$tag],$result); //...Make it an array using using the existing value and the new value + $repeated_tag_index[$tag.'_'.$level] = 1; + if($priority == 'tag' and $get_attributes) { + if(isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well + + $current[$tag]['0_attr'] = $current[$tag.'_attr']; + unset($current[$tag.'_attr']); + } + + if($attributes_data) { + $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; + } + } + $repeated_tag_index[$tag.'_'.$level]++; // 0 and 1 indexes are already taken + } + } + + } elseif($type == 'close') { // End of tag '' + $current = &$parent[$level-1]; + } + } + + return($xml_array); + } } ?>