Warning: mysql_fetch_array():
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in
- $connect=mysql_connect("localhost","root","123") or die("无法连接数据库".mysql_error());
 - mysql_select_db("cmstest") or die("无法选择数据库".mysql_errno());
 - $sql="select * from article where p;
 - $result=mysql_query($sql,$connect) or die("无法查询sql语句".mysql_error());
 - $nums=mysql_num_rows($result);
 - echo "nums is:".$nums;
 - while($res=mysql_fetch_array($result)){
 - echo $res[0];
 - }
 
原来是$result重复了.