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老是出现mysql_fetch_array(): supplied argument is not a valid MySQL result resource

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Release： 2016-06-13 12:51:45
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总是出现mysql_fetch_array(): supplied argument is not a valid MySQL result resource
总是出现mysql_fetch_array(): supplied argument is not a valid MySQL result resource in D:\的错误。请各位帮帮忙！
 
$sql = "select * from `topic` order by id  limit $start, $each_page";
mysql_query("set names 'gbk'");
    $result = mysql_query($sql);
  while (@$row=mysql_fetch_array($result))


------解决方案--------------------
查询失败！
$sql = "select * from `topic` order by id  limit $start, $each_page";
$start 和 $each_page 至少有一个不存在或值非法
Related labels：
fetch mysql nbsp start
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