php实现解析xml并生成sql语句的方法

<title>xml 转换为 sql</title>
<meta http-equiv='content-type' content='text/html; charset=utf-8' />
<style type="text/css">
  .tip_info {margin-bottom:10px;}
  .tip_info span {color:#f00;}
</style>
<?php
$xml = "D:/res/dressConfig.xml";
$doc = new DOMDocument();
$doc->load($xml);
$xpath = new DOMXPath($doc);
$query = "//i";
$entries = $xpath->query($query);
$len = $entries->length;
echo "<div class='tip_info'>总共找到<span>".$len."</span>个节点</div>";
$arr = array();
$idx = 0;
while ($idx < $len) {
  $nodeItem = $entries->item($idx);
  $id = $nodeItem->getAttribute("i");
  $name = $nodeItem->getAttribute("n");
  $inf = $nodeItem->getAttribute("inf");
//  echo "<div>".$id.'--'.$name.'--'.$inf."</div>";
  $idx++;
  array_push($arr, "update dress_item t SET t.s_name='".$name."',t.s_intro='".$inf."' WHERE t.n_doid=".$id.";");
}
$dir = "d:/sql/";
if (!is_dir($dir)) {
  mkdir($dir);
}
file_put_contents("d:/sql/dress_item.sql", implode("\n\r", $arr));
echo "生成完毕！";
?>