怎么判断数据库里字段是否为空?
$query = mysql_query("select * from our where content is null"); 这句对吗?
假如.我要判断字段为空就执行某些操作.不为空又执行另一操作..
$query = mysql_query("select * from our where content is null");<br /><br /> while($row = mysql_fetch_array($query)){<br /> $str = $row['content'];<br /> }<br /><br /> if($str){<br /> echo "1";<br /> }else{<br /> echo "2";<br /> }
