<?php

class Utils {
    /**
     * 将数据转为XML
     */
    public static function toXml($array) {
        $xml = '<xml>';
        forEach ($array as $k => $v) {
            $xml .= '<'.$k.'><![CDATA['.$v.']]></'.$k.'>';
        }
        $xml .= '</xml>';
        return $xml;
    }

    public static function dataRecodes($title, $data) {
        $handler = fopen('result.txt', 'a+');
        $content = "================".$title."===================\n";
        if (is_string($data) === true) {
            $content .= $data."\n";
        }
        if (is_array($data) === true) {
            forEach ($data as $k => $v) {
                $content .= "key: ".$k." value: ".$v."\n";
            }
        }
        $flag = fwrite($handler, $content);
        fclose($handler);
        return $flag;
    }

    public static function parseXML($xmlSrc) {
        if (empty($xmlSrc)) {
            return false;
        }
        $array = array();
        $xml = simplexml_load_string($xmlSrc);
        $encode = Utils::getXmlEncode($xmlSrc);
        if ($xml && $xml->children()) {
            foreach ($xml->children() as $node) {
                //有子节点
                if ($node->children()) {
                    $k = $node->getName();
                    $nodeXml = $node->asXML();
                    $v = substr($nodeXml, strlen($k) + 2, strlen($nodeXml) - 2 * strlen($k) - 5);
                } else {
                    $k = $node->getName();
                    $v = (string)$node;
                }
                if ($encode != "" && $encode != "UTF-8") {
                    $k = iconv("UTF-8", $encode, $k);
                    $v = iconv("UTF-8", $encode, $v);
                }
                $array[$k] = $v;
            }
        }
        return $array;
    }

    //获取xml编码
    function getXmlEncode($xml) {
        $ret = preg_match("/<?xml[^>]* encoding=\"(.*)\"[^>]* ?>/i", $xml, $arr);
        if ($ret) {
            return strtoupper($arr[1]);
        } else {
            return "";
        }
    }
}

?>