❶ 用php和mysql制作网站过程遇到的登陆界面为什么会出现下载PHP文件的问题我用的是w ...
亲,注意下你是否设置了header(“content-type:text/html;charset=utf-8”);肯定是你有单词写错了
❷ 用PHP做登陆注册页面
登录页:login.php
<?php
include("conn.php");
$username=$_POST['name'];
$password=$_POST['password'];
$yanzheng=$_POST['yanzheng'];
if(isset($_POST['submit']))
{
$sql=("select username,password from member where username='$username' and password='$password'") or die("sql语句执行失败");
//print_r($sql);
$ar=mysql_query($sql);
if($ar)
{
if($row=mysql_fetch_array($ar))
{
session_start();
if($_POST["yanzheng"])
{
if($yanzheng!=$_session[pic]||$yanzheng=="")
{
echo "验证码输入有误";
exit;
}
if($yanzheng==$_session[pic])
{
header("location:index.php");
}
}
}
else
{
echo "用户名或密码错误";
}
}
}
?>
<form action="login.php" method="post">
<table border=1 align=center width=500 height=300 bgColor=#DFFFDF bordercolor=#fffbec>
<tr>
<td colspan=2 align=center>用户登录</td>
</tr>
<tr>
<td>用户姓名:</td>
<td><input type="text" name="name" id="name"/></td>
</tr>
<tr>
<td>用户密码:</td>
<td><input type="password" name="password" id="password"/></td>
</tr>
<tr>
<td>验证码:</td>
<td><input type="text" name="yanzheng" id="yanzheng"/>
<img src="yanzheng1.php" width="50" height="30"></img>
</td>
</tr>
<tr>
<td colspan=3 align=center>
<input type="submit" name="submit" value="登录"/>
<input type="reset" name="reset" value="重置"/>
<a href="register.php">注册</a>
</td>
</tr>
</table>
</form>
注册页:register.php
<?php
include("conn.php");
if(isset($_POST['submit'])&&$_POST['submit']) {
if($_POST['username']=='')
{
echo "用户名不能为空";
exit();
}
if($_POST['password']=='')
{
echo "密码不能为空";
exit();
}
if($_POST['realpass']!=$_POST['password'])
{
echo "两次密码输入不一致";
exit();
}
$sql="insert into member(username,real_name,password,email,headimg) values('$_POST[username]','$_POST[username]','$_POST[password]','$_POST[email]','')";
$ar=mysql_query($sql);
if($ar)
{
header("location:index.php");
}
else
{
echo mysql_error();
}
}
?>
<body>
<form action="register.php" method="post">
<table border=1 align=center width=500>
<tr>
<td height=40 bgColor=#DFFFDF colspan=2>会员注册 [<a href="login.php">返回登录页</a>]</td>
</tr>
<tr>
<td height=40 bgColor=#fffbec >会员ID</td>
<td><input type="text" name="username" id="username"/></td>
</tr>
<tr>
<td height=40 bgColor=#fffbec>密码</td>
<td><input type="password" name="password" id="password"/></td>
</tr>
<tr>
<td height=40 bgColor=#fffbec>确认密码</td>
<td>
<input type="password" name="realpass" id="realpass"/>
</td>
</tr>
<tr>
<td height=40 bgColor=#fffbec>EMAIL</td>
<td><input type="text" name="email" id="email"/>
</tr>
<tr>
<td height=40 bgColor=#fffbec></td>
<td><input type="submit" name="submit" value="注册"/><input type="reset" value="重置"></td>
</tr>
</table>
</form>
</body>
主页显示:index.php
<?php
include("conn.php");
function cutstr($str,$cutleng)
{
$str = $str; //要截取的字符串
$cutleng = $cutleng; //要截取的长度
$strleng = strlen($str); //字符串长度
if($cutleng>$strleng)return $str;//字符串长度小于规定字数时,返回字符串本身
$notchinanum = 0; //初始不是汉字的字符数
for($i=0;$i<$cutleng;$i++)
{
if(ord(substr($str,$i,1))<=128)
{
$notchinanum++;
}
}
if(($cutleng%2==1)&&($notchinanum%2==0)) //如果要截取奇数个字符,所要截取长度范围内的字符必须含奇数个非汉字,否则截取的长度加一
{
$cutleng++;
}
if(($cutleng%2==0)&&($notchinanum%2==1)) //如果要截取偶数个字符,所要截取长度范围内的字符必须含偶数个非汉字,否则截取的长度加一
{
$cutleng++;
}
return substr($str,0,$cutleng);
}
?>
<html>
<head>
<script type="text/javascript">
function All(e, itemName)
{
var aa = document.getElementsByName(itemName);
for (var i=0; i<aa.length; i++)
aa[i].checked = e.checked; //得到那个总控的复选框的选中状态
}
function Item(e, allName)
{
var all = document.getElementsByName(allName)[0];
if(!e.checked) all.checked = false;
else
{
var aa = document.getElementsByName(e.name);
for (var i=0; i<aa.length; i++)
if(!aa[i].checked) return;
all.checked = true;
}
}
</script>
</head>
<?php
include("conn.php");
if(isset($_POST['del']))
{
$mm = $_POST["selected"];
$id =implode(",",$mm);
$sql = "delete from forums where id in(".$id.")";
//echo $sql;
$result=mysql_query($sql);
echo $result?"删除成功":"删除失败";
}
?>
<table style="BORDER-BOTTOM-WIDTH: 1px; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=600 align=center border=1 bordercolor=#ddddff>
<tr align=middle>
<td height=40 bgColor=#DFFFDF colspan=3>论坛列表</td>
</tr>
<tr>
<td colspan=3><a href="login.php" style="float:right">[退出系统]</a><a href="add_forum.php" style="float:right">[添加论坛]</a></td>
<td></td>
</tr>
<tr align=middle>
<td height=40 bgColor=#DFFFDF width=80>状态</td>
<td height=40 bgColor=#DFFFDF>论坛</td>
<td height=40 bgColor=#DFFFDF>最后更新</td>
</tr>
<?php
$sql="select * from forums";
$result=mysql_query($sql);
$num=mysql_num_rows($result);
if($num>0)
{
while($row=mysql_fetch_array($result)){
?>
<tr align=middle>
<td bgColor=#fffbec><input type="checkbox" name="selected" value="1"/></td>
<td height=50 bgColor=#fffbec width=300>
<?php
echo "<div><a href=\"forums.php?F=".$row['ID']."\">".$row['forum_name']."</a></div>";
echo cutstr($row['forum_description'],24);//最多显示24个字节,12个字,多余部分用省略号代替
echo "……";
?>
</td>
<td height=50 bgColor=#fffbec><div><?php echo $row['last_post_time']."by".$row['last_post_author']?></div></td>
</tr>
<?php
}
}
else
{
echo "<tr bgColor=#fffbec><td colspan=3>对不起,论坛尚在创建中……</td></tr>";
}
?>
<tr>
<td colspan=3> <input type="checkbox" name="selected" value="1" onclick="All(this,'selected')"/>全选/不全选</td>
</tr>
<tr>
<td><input type="button" name="del" id="del" value="删除选中项"/>
<?php
?>
</td>
</tr>
</table>
</html>
数据库你就自己建,望采纳~
❸ 如何用php做个登陆界面
你可以做一个简单的例如你只衫搜有用户名和密码即可那么你先在数据库(以mysql为例)中建表例如叫做user 字段为 id name pass分别是编或念历号、用户名、密码长度分别是int(8) a_t(自动编号) 主键,varchar(50) ,varchar(50) 你可以添加一个测试数据 例如 1,admin,admin//说明密码这里不说加密的问题,用明文实现 登录页面的代码:login.php
❹ 用HTML、PHP做了一个登录页面,为什么一点击登录就让我下载那个PHP文件,进不到登陆的页面
应该是php没有运行环境,或页面没有放在php运行环境内
❺ php课程设计用户登录系统
⑴ 以php开发网络留言板的设计目标实现以下功能: 新用户注册功能、用户登录功能、登录用
这个东西确实有点多,我刚开始还以为只是简单的留言板呢扰老升,收费很正常!这应该是个课程设计吧
⑵ php实现用户注册和登入,不用做效果求大牛指导
登陆界面 login.php
<form action="logincheck.php" method="post">
用户名:<input type=text name=user/><br/>
密码:<input type=password name=pass/><br/>
<input type=submit name=sub value="登陆"/>
<a href="register.php">注册</a>
</form>
登陆处理界面logincheck.php
<?php
mysql_connect('localhost','root','');
mysql_select_db('test');
mysql_query("set names 'gbk'");
$nsql="select username,passwd,nick from userinfo where username = '$_POST[user]' and passwd = '$_POST[pass]'";
$result = mysql_query($nsql);
$num = mysql_num_rows($result);
if($num){
$row = mysql_fetch_array($result);
echo "欢迎您,$row[2]";
}else{
echo"<script>alert('用户名或密码不正确');history.go(-1);</script>";
}
?>
注缓老册界面register.php
<form action="regcheck.php" method="post">
用户名:<input type=text name=user/><br/>
密码:<input type=password name=pass/><br/>
昵称:<input type=text name=nick/><br/>
<input type=submit name=sub value="注册"/>
</form>
注册含缺处理界面regcheck.php
<?php
mysql_connect('localhost','root','');
mysql_select_db('test');
mysql_query("set names 'gbk'");
$nsql="select username from userinfo where username = '$_POST[user]'";
$result = mysql_query($nsql);
$num = mysql_num_rows($result);
if($num){
echo "<script>alert('用户名已存在注册失败');history.go(-1);</script>";
}else{
$isql = "insert into userinfo values('$_POST[user]','$_POST[pass]','$_POST[nick]')";
mysql_query($isql);
echo"<script>alert('注册成功');history.go(-1);</script>";
}
?>
⑶ 怎么用PHP+MYSQL做注册和登陆系统,要详细哦!
login
<body>
<form action="index.php" method="post">
<input type=text name=username id="username" />
<input type=submit name=Submit id="Submit" value="登陆" />
</form>
</body>
index.php
<?php
if($_POST['username'] == '')
echo '您的登陆名不能为空。<a href="login">请重新填写</a>';
else
echo '您的登陆名是:' . $_POST['username'];
?>
<?
include "conn/conn.php";
$UserName=$_POST["UserName"];
$mima1=$_POST["mima1"];
$mima2=$_POST["mima2"];
$xin=$_POST["xin"];
$nian=$_POST["nian"];
$dianhua=$_POST["dianhua"];
$email=$_POST["email"];
$qq=$_POST["qq"];
$sql="INSERT INTO 'my_china'.'chuche' ('id','UserName' ,'mima1' ,'mima2' ,'xin' ,'nian' ,'dianhua' ,'email' ,'qq' )VALUES (NULL , '$UserName', '$mima1', '$mima2', '$xin', '$nian', '$dianhua', '$email', '$qq')";
mysql_query($sql);
echo "<script> alert('用户注册成功!');</script>";
echo "<script> window.location='zc.php';</script>";
?>
⑷ php语言如何实现一个完整用户登录系统的制作
php语言如何实现一个完整用户登录系统的制作?
说用户的登录,简单的理解:输入密码/验证帐内号/保存登录信息
复杂一容点说:会员注册/审核/登录/验证/保存登录信息 (也就有了会员管理的相关功能)
现在网上好多开源PHP系统,像dedeCMS/DISCUZ/PHPwind等等,都有会员模块,下载了看看源码就明白差不多了。
如果初学PHP,推荐搜集Cookie 和 Session的相关信息,这是会员用到的核心,这两个内容的案例大多也是以会员为例,网上资料也不少,网络一下吧,good luck,学习愉快!
⑸ php做的登录系统 帮忙
<?
$mysql_servername = "localhost"; //主机地址
$mysql_username = "root"; //数据库用户名
$mysql_password ="root"; //数据库密码
$mysql_database ="student"; //数据库
mysql_connect($mysql_servername , $mysql_username ,$mysql_password);
mysql_select_db($mysql_database);
$sname=$_POST['username'];
$sin=$_POST['userio'];
$sql = "SELECT * FROM info WHERE name = $sname and no=$sin";
$res =@mysql_query($sql);
$rs=@mysql_fetch_array($res);
if($rs==NULL){
die('登录失败,错误的用户名或学号')
}else{
echo "<br>输入的姓名为:";
echo $sname;
echo "<br>输入的学号为:";
echo $sin;
}
?>
⑹ PHP 实现注册登录系统
其实楼主要的代码网上有很多。你没有给出具体要实现注册的信息,所以只找了这个代码。楼主可以根据具体情况自己修改代码。
①注册模块:
//hi./oldjunren/blog/item/2709e606841fbfca7a894774
②登陆模块
//hi./oldjunren/blog/item/79c827cf1e398c3eb700c871
③PHP 防范SQL注入漏洞//hi./oldjunren/blog/item/6540b734b207be1691ef3961
希望楼主成功。
⑺ 注册登录系统的设计与实现php
<script language="javascript">
function checkpost()
{
if(loginform.user.value =="")
{
alert("用户名不能为空!");
loginform.user.focus();
return false;
}
if(loginform.pw.value =="")
{
alert("密码不能为空!");
loginform.pw.focus();
return false;
}
}<script> 用户登录
</tr>
<tr> <td height=169 bgcolor="#F9F9F9" ><form action="login.php" method="post" onSubmit="return checkpost();" name=loginform><div><span > <font color="#000000">用户名:</font></span><input name=user type=text size="15" />
</div> <div><span class="class9"> <font color="#000000">密 码:</font></span><input name=pw type=password size="15" />
</div>
<div align=center><input type=submit name=sub value="登录" /> <input type=reset value="重置" /></div>
<div align=center class="syCss"><a href="username1.php" target="_blank">注册</a></div>
</form></td> login.php<?php
session_start();
$username =trim( $_POST['user']);
$password =trim( $_POST['pw']);
if((empty($username)) || (empty($password)))
{
echo "<script language=\"JavaScript\">alert('用户名或者密码不能为空!');history.back();</script>";
}
else
{
$myconn = mysql_connect("localhost", "root", "");
mysql_query("SET NAMES 'GBK'");
mysql_select_db("users") or die ("不能连接到数据库!");
//判断用户名和密码是否在正确
$strSql="select * from test where username='$username' and password='$password'";
$result=mysql_query($strSql) or die("读取数据库出现错误!");
$num=mysql_num_rows($result);
if($num<0)
{
echo "该用户不存在!";
}
else
{
$row = mysql_fetch_array($result);
if(($row['username'] == $username) && ($row['password'] == $password ) )
{
$name = "欢迎您:";
$_SESSION[username] = $name. $username;
$quit = "退出";
$_SESSION[quit] = $quit;
echo "<script language=\"JavaScript\">alert('登录成功!');window.location.> }
}
}
mysql_close($myconn);
}
?><a href= //xiaohouse>小房子</a>