<?php
include("config.php")
session_start()
/*--------------------删除cookies记录,让cookies过期-----------------------------------*/
if($_GET["del"]=="cookies")
{
setcookie("usercookies", "", time()-3600)
setcookie("pwdcookies", "", time()-3600)
echo "<SCRIPT type=text/javascript>
var n = 5
var timer = setInterval(function() {
n--
document.getElementById('second').innerHTML = n
if (n == 0) {
clearInterval(timer)
window.location = 'login.php'
}
}, 1000)
</SCRIPT>删除成功<br><B class='chengse STYLE1' id=second>5</B>秒后回到首页"
exit()
}
/*------------------------如果判断已经有cookies存在,则进行自动登录操作----------------------------------*/
if($_COOKIE["usercookies"]!="" and $_COOKIE["pwdcookies"]!="")
{
$username=$_POST["username"]
$userpassword=$_POST["userpassword"]
$sql=mysql_query("select * from user where username='$username' and userpassword='$userpassword'")
$rs=mysql_fetch_array($sql)
echo"自动跳转成功"
//exit()
}
/*----------------------------点击登录按钮后的动作act=login----------------------------------*/
if($_GET["act"]=="login")
{
/*------------------判断获取的验证码是否一致-------------------------*/
/*if(strtoupper($_SESSION["vcode"])!=strtoupper($_POST["Code"]))
{
echo("<script type='text/javascript'>alert('对不起,验证码错误!')location.href='javascript:onclick=history.go(-1)'</script>")
exit()
}*/
/*------------------------点击登录按钮后如果判断已经有cookies存在,则进行自动登录操作----------------------------------*/
if($_COOKIE["usercookies"]!="" and $_COOKIE["pwdcookies"]!="")
{
$username=$_POST["username"]
$userpassword=$_POST["userpassword"]
$sql=mysql_query("select * from user where username='$username' and userpassword='$userpassword'")
$rs=mysql_fetch_array($sql)
if($_POST["username"]==$rs["username"] and $_POST["userpassword"]==$rs["userpassword"])
{
echo"<script type='text/javascript'>alert('存在cookies登录跳转成功!')location.href='javascript:onclick=history.go(-1)'</script>"
exit()
}
else
{
echo"<script type='text/javascript'>alert('存在cookies登录跳转失败!')location.href='javascript:onclick=history.go(-1)'</script>"
exit()
}
exit()
}
/*-------------------点击登录后判断cookies不存在则进行登录比较用户名密码------------------------------*/
$username=$_POST["username"]
$userpassword=md5($_POST["userpassword"])
$sql=mysql_query("select * from user where username='$username' and userpassword='$userpassword'")
if($rs=mysql_fetch_array($sql))
{
/*---------------------用户名密码判断正确,写入cookies动作,同时进行跳转------------------------------------*/
setcookie("usercookies", $_POST["username"], time()+3600*48)
setcookie("pwdcookies", md5($_POST["userpassword"]), time()+3600*24)
header('Location: http://www.baidu.com/')
exit()
}
else
{
/*-------------------判断用户名密码错误,弹出错误提示---------------------------*/
echo "<script type='text/javascript'>alert('用户名或密码错误,请重新输入!')location.href='javascript:onclick=history.go(-1)'</script>"
exit()
}
}
/*
$user_IP = $_SERVER["REMOTE_ADDR"]//获取访问者IP
$file_name=date('Y-m-d').'.txt'//以当前的日期建立txt文件
$file=fopen($file_name,"a+")//如果存在该文件就打开,如果不存在就创建
fwrite($file,$user_IP.'--'.date('Y-m-d H:i:s')."\r\n")//将访问者IP及当前时刻写到文件最后,\r\n在文档最后换行
fclose($file)//关闭文件
*/
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/htmlcharset=gb2312" />
<title>COOKIES判断是否自动登录</title>
</head>
<body>
<form action="?act=login" method="post">
<input name="username" type="text" id="username" value="<?php if($_COOKIE["usercookies"]!=""){echo $_COOKIE["usercookies"]}?>" />
<input name="userpassword" type="password" id="userpassword" value="<?php if($_COOKIE["pwdcookies"]!=""){echo $_COOKIE["pwdcookies"]}?>"/>
<!--<img src="yanzhengma_class.php" title="看不清楚?请点击刷新验证码" onClick="this.src='yanzhengma_class.php?t='+(new Date().getTime())" height="20px"><input name="Code" type="text" id="Code" value="" />-->
<input name="" type="submit" />
</form>
<a href="?del=cookies">删除cookies</a>
</body>
</html>
<!doctype html><html>
<head>
<meta charset="utf-8">
<link href="main.css" type="text/css" rel="stylesheet">
<title>登陆界面</title>
</head>
<body>
<div class="login_ico">
<img src="images/login_ico.png">
</div>
<div class="login_putin">
<ul>
<li><input type="text" ></li>
<li><input type="password" ></li>
</ul>
</div>
<div class="login_btn">
<input type="submit" value="登陆">
</div>
</body>
</html>
样式 :
*{
margin:0
padding:0}
li{
list-style-type:none
margin:0
padding:0}
a{
text-decoration:none
color:#000}
/*---------------------按钮-----------------------------*/
.login_putin ul li input{
margin: 0
width:70%
padding: 1em 2em 1em 5.4em
-webkit-border-radius:.3em
-moz-border-radius: .3em
border: 1px solid #999
}
.login_btn{
width:300px
margin:40px auto 0 auto
}
.login_btn input{
width:100%
margin:0
padding:.5em 0
-webkit-border-radius:.3em
-moz-border-radius: .3em
border:#1263be solid 1px
background:#1b85fd
color:#FFF
font-size:17px
font-weight:bolder
letter-spacing:1em
}
.login_btn input:hover{
background:#1263be
}
可以用html进行程序编写,从而实现系统登陆界面文本框前有小图案的需求。可参照以下代码为模板进行编写:完整的代码1:https://download.csdn.net/download/mingzi1245/12406208 代码2https://download.csdn.net/download/mingzi1245/12406204
html是超文本标记语言(英语:HyperText Markup Language,简称:HTML)是一种用于创建网页的标准标记语言。您可以使用 HTML 来建立自己的 WEB 站点,HTML 运行在浏览器上,由浏览器来解析。