我一直在阅读关于mysql_fetch_*方法的文章。这是我从PHP.org网站上学到的。mysql_fetch_array — Fetch a result row as an associative array, a numeric array, or both看起来,mysql_fetch_array包含所有存在于
mysql_fetch_assoc,mysql_
= "SELECT COUNT(t.id), SUM(t.num_replies) FROM threads AS t WHERE t.forum_id=$forum_id";
list($num_threads, $num_posts) = mysql_fetch_assoc($result);Notice: Undefined offset:
- If yes, fetch it from MySQL database$result = mysql_query("SELECT * FROM UPC WHERE `upc` = '$codes[0]'");
$data = mysql_fetch_arraynoCacheAfterUTC] =>
我在我的函数中有这段代码,如果它不能获取存储在变量$result中的数据,它就会回显“空”。“空”部分工作正常。但是,如果条件进入else部分,它将不会回显用户数据,为什么?$result = mysql_query("SELECT * FROM `users` ORDER BY `earnings` DESC LIMIT ".$load.",1") or die (mysql_error()); echo &q