修改下inc/artic_function.php
$erp=$Fid_db[iftable][$fid];  替换为：

$erp=$Fid_db[iftable][$fid];
$getpost=$db->get_one("SELECT * FROM {$pre}members WHERE username='$postdb[username]'");



INSERT INTO `{$pre}article$erp`
uid这一处对应的$lfjdb[uid]  改成你的$getpost[uid]
username这一处对应的$lfjdb[username]  改成你的$postdb[username]