Question

$query =DB：query取值的问题，怎么才能取到值

Answer 1

$query =DB::query("SELECT 'attachment', 'filename' FROM ".DB::table('forum_attachment')." WHERE aid='$aid'");
print_r($query);
if ($query) {
$btfile=DB::fetch($query);
print_r($btfile);
$fileext = $btfile['filename'];
$filename = $btfile['attachment'];}
else {
echo 'database_error';
showmessage("很抱歉，你所阅读的附件无法从数据库读取，请确定该附件是否已经上传！","index.php");}