请帮忙看看我的这段代码的问题，憋了半天啦，谢谢 请大神看看我这段代码是什么问题，谢谢了
\u9ad8\u624b\u8bf7\u5e2e\u5fd9\u770b\u770b\u8fd9\u6bb5php\u4ee3\u7801\u6709\u4ec0\u4e48\u95ee\u9898,\u8001\u662f\u62a5\u9519\uff01\u8c22\u8c22\u5566\uff011.\u8bf7\u6ce8\u610fSQL\u67e5\u8be2\u7684\u7ed3\u679c\u6570\u7ec4\u4e2d\u7684\u952e\u540d\u7684\u5927\u5c0f\u5199\uff0c\u5efa\u8bae\u4f7f\u7528\u5c0f\u5199\u3002
$result[$i]['Description'] --> $result[$i]['description']
$result[$i]['Price'] --> $result[$i]['price']
2.\u8bf7\u5728\u9009\u62e9\u6570\u636e\u5e93\u4ee3\u7801\u540e\u589e\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff0c\u907f\u514d\u5199\u5165\u6587\u4ef6\uff08datafeed.xml\uff09\u51fa\u73b0\u4e2d\u6587\u4e71\u7801\uff1a
mysql_query('SET NAMES utf8'); //\u5176\u4e2dutf8\u4e3a\u4f60\u81ea\u5df1\u8bbe\u7f6e\u7684\u7f16\u7801
3.\u5c06 if (is_writable($filename)) \u6539\u4e3a if (is_writable($filename) or !file_exists($filename)) \uff0c\u5426\u5219\u5982\u679c\u6587\u4ef6datafeed.xml\u6ca1\u6709\u88ab\u521b\u5efa\u65f6\u62a5\u9519\uff08\u201c\u6587\u4ef6\u4e0d\u53ef\u5199\u201d\uff0c\u4e14\u4e5f\u4e0d\u4f1a\u521b\u5efa\u8be5\u6587\u4ef6\uff09\u3002
4.\u4f60\u7684xml\u6587\u4ef6\u7ed3\u6784\u63cf\u8ff0\u6709\u95ee\u9898\uff0c\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u4fee\u6b63\u3002
\u53c2\u8003\u4ee3\u7801\uff1a\uff08\u5df2\u5728Win+Apache+MySQL+PHP\u4e0b\u9a8c\u8bc1\u901a\u8fc7\uff09
<?php
$conn = mysql_connect('localhost', 'root', '123456') or die ('Error connecting to mysql');
mysql_select_db('test', $conn) or die ('Error connecting to database');
mysql_query('SET NAMES utf8');
function getXML($sql="Default Query")
{
$results = mysql_query($sql);
$count = 0;
$data = array();
while ( $row = mysql_fetch_array($results))
{
$result[$count] = $row;
$count++;
}
$columns='';
for($i=0;$i < count($result);$i++)
{
$columns.='';
$columns.='';
$columns.=$result[$i]['name'];
$columns.='';
$columns.='';
$columns.= $result[$i]['link'];
$columns.='';
$columns.='';
$columns.=$result[$i]['description'];
$columns.='';
$columns.='';
$columns.=$result[$i]['image'];
$columns.='';
$columns.='';
$columns.=$result[$i]['price'];
$columns.='';
$columns.='';
$columns.='new';
$columns.='';
$columns.='';
$columns.=$result[$i]['id'];
$columns.='';
$columns.='';
}
$content='';
$content.='';
$content.='Example';
$content.='http://www.example.com';
$content.='Example';
$content.=$columns;
$content.='';
$content.='';
$res = update_xml_file($content);
}
getXML("SELECT id,name,description,price,link,image FROM details");
function update_xml_file($content)
{
global $HTTP_POST_VARS;
$filename = 'datafeed.xml';
if (is_writable($filename) or !file_exists($filename))
{
if (!$handle = fopen($filename, 'w')) {
echo "Cannot open file ($filename)";
exit;
}
// Write $somecontent to our opened file.
if (fwrite($handle, $content) == FALSE) {
$action_msg = "ER";
}
$action_msg = "SC";
fclose($handle);
$handle=fopen($filename,"r");
}
else
{
echo "The file $filename is not writable";
}
}
?>
\u6709\u9519\u8bef\u63d0\u793a\u5417.\u4eb2.
\u4ee3\u7801\u7f16\u8bd1\u770b\u4e0d\u51fa\u6765\u6709\u9519\u554a.
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