我开始编写一个脚本来检查用户在数据库中的注册日期,如果用户“过期”,该脚本会阻止他访问该站点。该脚本应该每天自动运行(cron 作业?)并且每次都重复相同的过程。不幸的是,由于某种原因,UPDATE 功能不起作用,我不明白为什么。提前致谢!
编码:
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// To protect MySQL injection (more detail about MySQL injection)
$sql=" SELECT id, group_id, registerDate
FROM w9phl_users
INNER JOIN w9phl_user_usergroup_map ON w9phl_users.id = w9phl_user_usergroup_map.user_id
WHERE registerDate < NOW( )
AND group_id = 3
";
$result=mysql_query($sql);
if (!$result) {
die('Could not query:' . mysql_error());
}
while ($details = mysql_fetch_assoc($result)) {
if ($details['id'] > 904)
{$sql=" UPDATE w9phl_users
SET block=1
WHERE id > 904";
}
else
{
echo "only IDs greater than 904 is permitted.";
}
}