login.php

来自「本程序适合新手入门学习用,偶也是一个新手,愿意和大家一同学习交流, 最近也比较」· PHP 代码 · 共 36 行

<?php
include_once"config.php";
$usern=$_GET['username'];
$passw=$_GET['password'];

if(isset($ok))
{
		if($usern=="")
 		  { $info="请输入用户名"; header("location:index.php?info=$info"); exit; } 
		else 
		  { if($passw=="")
		      { $info="请输入密码"; header("location:index.php?info=$info"); exit; }
		    else
			  { 	
				$conn=mysql_connect($Host,$User,$Password);
            	$sql="select * from counter where username='$usern'";
                mysql_select_db($Database,$conn);
              	$result=mysql_query($sql);
				if($result)
					{ $row=mysql_fetch_array($result);		
                      $dbusername=$row['username'];
                      $dbuserpass=$row['userpass'];
                      mysql_close($conn);
					  if($dbusername==$usern and $dbuserpass==md5($passw))
						  { session_start(); session_register("switch"); session_register("name"); //这两行是传递权限参数
					         $_SESSION['switch']=1; $_SESSION['name']=$dbusername;                 //到index.php页面的
					         header("location:index.php"); exit; }
					  else
						  { $info="登陆失败"; header("location:index.php?info=$info"); exit; }
					}
				else echo "Check Error";
			   }
		  }			  
}
else echo "Not Submit";
?>