Parse error: syntax error, unexpected 'include' (T_INCLUDE) in D:\myweb\add.php

add.php的源代码:
<?php
//用户注册以后的数据处理文件.需要先检查数据合法性,然后写入数据库
//获取注册用户提交的数据
$UserName1=$_POST["UserName"];//用户名
$Password1=$_POST["Password"];//密码
$ConfirmPassword1=$_POST["ConfirmPassword"];//确认密码
$Email=$_POST["Email"];//邮箱
//定义保存激活码变量
$actnum=""
//导入数据库文件
include 'config.php';
//定义产生激活码函数
function Check_actnum()
{
$chars_for_actnum=array("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","1","2","3","4","5","6","7","8","9","0");
for($i=1;$i<=20;$i++)//生成一个20字符的激活码
{
$actnum=$chars_for_actnum[mt_rand(0,count($chars_for_actnum)-1)];
}
return $actnum;
}
//判断用户名函数
function Check_UserName($UserName)//参数为用户注册的用户名
{
//用户名三个方面检查
//是否为空 字符串检测 长度检测
$Max_Strlen_UserName=16;//用户名最大长度
$Min_Strlen_UserName=4;//用户名最短长度
$UserNameChars="^[A-Za-z0-9_-]";//字符串检测的正则表达式
$UserNameGood="用户名检测正确";//定义返回的字符串变量
if($UserName=="")
{
$UserName="用户名不能为空";
return $UserNameGood;
}
if(!reg("$UserNameChars",$UserName))//正则表达式匹配检查
{
$UserNameGood="用户名字符串检测不正确";
return $UserNameGood;
}
if(strlen(UserName)<$Min_Strlen_UserName||strlen(UserName)>$Max_Strlen_UserName)
{
$UserNameGood="用户名字长度检测不正确";
return $UserNameGood;
}
return $UserNameGood;
}
//判断密码是否合法函数
function Check_Password($Password)
{
//是否为空 字符串检测 长度检测
$Max_Strlen_Password=16;//密码最大长度
$Min_Strlen_Password=6;//密码最短长度
$PasswordChars="^[A-Za-z0-9_-]";//密码字符串检测正则表达式
$PasswordGood="密码检测正确";//定义返回的字符串变量
if($Password=="")
{
$PasswordGood="密码不能为空";
return $PasswordGood;
}
if(!ereg("$PasswordChars",$Password))
{
$PasswordGood="密码字符串检测不正确";
return $PasswordGood;
}
if(strlen($Password)<$Min_Strlen_Password)||strlen($Password)>$Max_Strlen_Password)
{
$PasswordGood="密码长度检测不正确";
return $PasswordGood;
}
return $PasswordGood;
}
//判断邮箱是否合法函数
function Check_Email($Email)
{
$EmailChars="^[_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*$";//正则表达式判断是否是合法邮箱地址
$EmailGood="邮箱检测正确";
if($Email=="")
{
$EmailGood="邮箱不能为空";
return $EmailGood;
}
return $EmailGood;
}
//判断两次密码输入是否一致
function Check_ConfirmPassword($Password,$ConfirmPassword)
{
$ConfirmPasswordGood="两次密码输入一致";
if($Password<>$ConfirmPassword)
{
$ConfirmPasswordGood="两次密码输入不一致";
return $ConfirmPasswordGood;
}
else
return $ConfirmPasswordGood;
}
//调用函数,检测用户输入数据
$UserNameGood=Check_UserName($UserName1);
$PasswordGood=Check_Password($Password1);
$EmailGood=Check_Email($Email);
$ConfirmPasswordGood=Check_ConfirmPassword($Password1,$ConfirmPassword1);
$error=false;//定义变量判断注册数据是否出现错误
if($UserNameGood!="用户名检测正确")
{
$error=true;//改变error的值表示出现了错误
echo $UserNameGood;
echo "<br/>";
}
if($PasswordGood !="密码检测正确")
{
 $error=true;
 echo $PasswordGood;
 echo "<br>";
}
if($EmailGood !="邮箱检测正确")
{
 $error=true;
 echo $EmailGood;
 echo "<br>";
}
if ($ConfirmPasswordGood !="两次密码输入一致")
{
 $error=true;
 echo $ConfirmPasswordGood;
 echo "<br>";
}
//判断数据库中用户名和email是否已经存在
$query="select * from als_signup where UserName='$Username1' or Email='$Email1'";
$result=mysql_query($query);
$row=mysql_fetch_array($result);
while($row)
{
if($row["UserName"]==$UserName1)
{
$error=true;
echo "用户名已存在<br/>";
}
if($row["Email"]==$Email1)
{
$error=true;
echo "用户邮箱已经注册<br/>";
}
}
//如果数据检测都合法,则将用户资料写进数据库表
if($error=false)//$error==false表示没有错误
{
$actnum=Check_actnum();//调用激活码函数
$Datetime=date("d-m-y G:i");//获取注册时间,也就是写入到用户表的时间
$query="insert into als_signup 
(UserName,Password,Email,actNum,UserLevel,SignUpdate,LastLogin,LastLoginFail,NumLoginFail) values('$UserName1','$Password1','$Email1','$actnum','1','$Datetime','0','0','0')";
$result=mysql_query($query);
$to=$Emaill;
$subject="激活码";
$message="您的激活码为$actnum";
$header="From:[email protected]"."\r\n";//邮件头信息
if(mail($to,$subject,$message,$header))//php中mail()函数用来发送邮件，需要更改php.ini文件，最好安装SMTP服务器
    {
     //产生链接，链接到激活页面
     ?>
     请登陆邮箱获取激活码。然后点击<a href="activate.php">这里</a>激活。
     <?php
    }
}
?>
config.php的源代码:
<?php
$conn=mysql_connect("localhost","root","123");
if(!$conn)
{
die('could not connect:'.mysql_error());
}
mysql_select_db("members",$conn);
?>
请问哪里出错了?