将xml文件转换成认为数组

将xml文件转换成以为数组

<?php/* * To change this template, choose Tools | Templates * and open the template in the editor. */class XmlToArray {    function __construct() {            }    function xml2array($contents, $get_attributes=1, $priority = 'tag') {        if (!$contents)            return array();        if (!function_exists('xml_parser_create')) {            //print "'xml_parser_create()' function not found!";            return array();        }        //Get the XML parser of PHP - PHP must have this module for the parser to work        $parser = xml_parser_create('');        xml_parser_set_option($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)            return; //Hmm...            //Initializations        $xml_array = array();        $parents = array();        $opened_tags = array();        $arr = array();        $current = &$xml_array; //Refference        //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                        $result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr'                }            }            //See tag status and do the needed.            if ($type == "open") {//The starting of the tag '<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 ($type == "complete") { //Tags that ends in 1 line '<tag />'                //See if the key is already taken.                if (!isset($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 . '_' . $level]++; //0 and 1 index is already taken                    }                }            } elseif ($type == 'close') { //End of tag '</tag>'                $current = &$parent[$level - 1];            }        }        return $xml_array;    }}?><?php/**?*用递归法将返回的多维数组存进一维数组?*/    function datatosession($array) {        foreach ($array as $key => $value) {            if (is_array($value) && $value != null) {                $this->datatosession($value);            } else {                if (is_string($value)) {                    $_SESSION["$key"] = $value;                }            }        }    }??>