php代码错误,未更新日期表


Error in php code, not update date table

我有unsob.php代码:

<?php 
include("config.inc.php");
$id=$_REQUEST['id'];
$time=$_REQUEST['t'];
$cid=0;
if(isset($_REQUEST['cid']))
$cid=$_REQUEST['cid']
if($cid==0)
mysql_query("update email_advt set unsubstatus=1 where id=$id AND time=$time");
else
{
if($mysql->total(email_advt","id=$id AND time=$time")>0)
mysql_query("delete from ea_em_n_cat where eid=$id AND cid=$cid");
}
?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html>
<head>
<title> Unsubscribe Email</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
Your email has been successfully unsubscribed from our mailing list. <br>
</body>
</html>

这些表格:

CREATE TABLE IF NOT EXISTS `email_advt` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `email` varchar(250) NOT NULL DEFAULT '',
  `unsubstatus` int(11) NOT NULL DEFAULT '0',
  `time` int(11) NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`),
  UNIQUE KEY `email` (`email`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=4 ;
CREATE TABLE IF NOT EXISTS `ea_em_n_cat` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `eid` int(11) NOT NULL DEFAULT '0',
  `cid` int(11) NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 AUTO_INCREMENT=7 ;

何时访问unsob.php?id=1&t=1360306174&cid=0
不显示您的电子邮件已成功从我们的邮件列表中取消订阅
怎么了?访问unsob.php时未将unstatus设置为1?id=1&t=1360306174&cid=0

使用此查询,您错过了回溯`

mysql_query("update email_advt set `unsubstatus`=1 where `id`=$id AND `time`=$time");

我认为这里有错误:

if($mysql->total(email_advt","id=$id AND time=$time")>0)

尝试

if($mysql->total("email_advt"," id=$id AND time=$time")>0)

尽管我真的不确定你想要得到什么,也不确定total()方法的参数。

如果使用内置函数作为列名,则需要用重音符号将其括起来。即,在您的查询中,您使用的是列time,这是MySQL中的内置函数。