php新闻编辑怎么弄?高手帮我看看那里写错了?谢谢
<?php
$conn = mysql_connect("localhost","root","123");/*数据库*/
mysql_query("set names GB2312");
$db = mysql_select_db("miaolaor");
$sql="SELECT * FROM news_listing where news_Id='$_GET[AId]'";
$query=mysql_query($sql);
if($_POST['Submit'])
$sql="update news_listing set news_headline='$_POST[news_headline]',news_intro='$_POST[news_intro]',content='$_POST[content]' where news_Id='$_POST[AId]'";
//$sql = 'UPDATE `news_listing` SET `news_headline` = \'$news_headline\', `news_intro` = \'$news_intro\', `content` = \'$content\' WHERE `news_listing`.`news_Id` = \'$news_Id\' ;';
mysql_query($sql);//执行sql语句
if($sql){
echo "修改成功";
echo "<a href='news_listing_binding.php'>返回</a>";
}else{
echo "修改失败";
echo "<a href='news_listing_binding.php'>返回</a>";
}
//echo $sql;
?>