我的代码 [PHP]
<?php if($_POST['userid']!="") { $myconn = mysql_connect("localhost", "root", "") or die (" 无法连接数据库！"); mysql_select_db("mydata",$myconn) or die ("不能连接到数据库！"); //判断用户名和密码是否在正确 $strSql="select * from lqdyk where ksh='$userid' and password='$password'"; $result=mysql_query($strSql,$myconn) or die("读取数据库出现错误！"); $num=mysql_num_rows($result); mysql_close($myconn); if($num>0) { session_start(); //session_register("user"); //session_register("passwd"); $_SESSION['user'] =$userid; $_SESSION['passwd']=$password; Header("Location:mailactivate.php"); } else echo "