PHP会员系统(3)

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PHP会员系统（3）-用户注册以及登陆

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来源中国教程网

用户注册：reg.php页面代码来源中国教程网

<?php
/*
@web 用户注册页面
@author yangfan
@2007/12/18/22:50
*/ http://www.cnjiaocheng.com

//调用主机信息
include ("config.php");
//是否点击注册
if($submit){
//接受传递过来的值
$username   = $_POST['username'];
$usernick = $_POST['usernick'];
$password   = $_POST['password'];
$rpassword = $_POST['password'];
$i=0;
if(!$username){
echo "<script> alert(/"用户名不能为空/"); </script>";
$i++;
}
if(!$usernick){
echo "<script> alert(/"呢称不能为空/"); </script>";
$i++;
}
if(strlen($password)<6||($password!=$rpassword)){
echo "<script> alert(/"密码长度要大于6//n2次输入密码要一致/"); </script>";
$i++;
}
if($i==0){
//传入数据到数据库
$id      = mysql_insert_id(); //自动获取数据库最后一个数据的ID+1

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$updata = "insert into members (id,username,password,usernick) values('".$id."','".$username."','".$password."','".$usernick."')";
$result = mysql_query($updata);
mysql_close();
echo "$usernick:恭喜你注册成功!";
echo "<hr size=/"1/" color=/"#000/" width=/"50%/" align=/"left/">";
echo "<a href=/"login.php/">登陆页面</a> &nbsp";
echo "<a href=/"index.php/">返回首页</a> &nbsp";
echo "<a href=/"reg.php/">注册页面</a>";
exit();
}
}
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?>
<html>
<head>
<title>用户注册</title>
</head>
<body>
用户注册:
<hr size="1" color="#000" width="50%"align="left">
<form action="reg.php" method="POST">
   用 户 名:
   <input type="text" id="username" name="username"size="15"><br>
   呢    称:
   <input type="text" id="usernick" name="usernick"size="15"><br>
   密    码:
   <input type="password" id="password" name="password"size="15"><br>
   重复密码: http://www.cnjiaocheng.com
   <input type="password" id="rpassword" name="rpassword"size="15"><br>
   <input type="submit" id="submit" name="submit" value="注册">
   <input type="reset">
</form>
</body>
</html>

http://www.cnjiaocheng.com

用户登陆：login.php页面代码 http://www.cnjiaocheng.com

<?php
/*
@web 用户登陆页面
@author yangfan
@2007/12/18/22:40
*/ 来源中国教程网

//调用主机信息
include ("config.php");

来源中国教程网

//获取表单传递过来的值
$username = $_POST['username'];
$password = $_POST['password'];
if($username){
$o   = "SELECT * FROM members where username = '$username' AND password = '$password' ";
$r   = mysql_query($o);
$i   = 0;
while($row=mysql_fetch_object($r)){
$i++;
}
if($i!=0){
echo "登陆成功!";
echo "<hr size=/"1/" color=/"#000/" width=/"50%/" align=/"left/">";
echo "<a href=/"index.php/">返回首页</a>";
exit();
}
else{
echo "用户名或密码不正确，请重新登陆:<br>";
echo "<hr size=/"1/" color=/"#000/" width=/"50%/" align=/"left/">"; http://www.cnjiaocheng.com
echo "<a href=/"login.php/">登陆页面</a> &nbsp";
echo "<a href=/"reg.php/">注册页面</a> &nbsp";
echo "<a href=/"index.php/">返回首页</a>";
exit();
}
}
?> 来源中国教程网

<html>
<head>
<title>用户登陆</title>
</head>
<body>
用户登陆：
<hr size="1" color="#000" width="50%"align="left">
<form action="login.php" method="POST">
   用户名:
   <input type="text" name="username" id="username" size="15"><br>
   密  码:
   <input type="password" name="password" id="password" size="15"><br>
   <input type="submit" name="submit" id="submit" value="登陆">
   <input type="reset">
</form>
</body>
</html> http://www.cnjiaocheng.com

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