php中Array2xml类实现数组转化成XML实例

<?php
class Array2xml
{
??? var $xml;
??? function array2xml($array,$encoding='utf-8') {
??????? $this->xml='<?xml version="1.0" encoding="'.$encoding.'"?>';
??????? $this->xml.=$this->_array2xml($array);
??? }
??? function getXml() {
??????? return $this->xml;
??? }
??? function _array2xml($array)
??? {
??????? $xml='';
??????? foreach($array as $key=>$val){
??????????? if(is_numeric($key)){
??????????????? $key="item id="$key"";
??????????? }else{
??????????????? //去掉空格,只取空格之前文字为key
??????????????? list($key,)=explode(' ',$key);
??????????? }
??????????? $xml.="<$key>";
??????????? $xml.=is_array($val)?$this->_array2xml($val):$val;
??????????? //去掉空格,只取空格之前文字为key
??????????? list($key,$key);
??????????? $xml.="</$key>";
??????? }
??????? return $xml;
??? }
}