<?php
//session_start();
// set your infomation.
$dbhost='localhost';
$dbusername='root';
$dbuserpass='root';
$dbname='root';

if (isset($_COOKIE['user'])) {
echo "Welcome $_COOKIE[user]";
}else{

//connect to the mysql database server.
mysql_connect ($dbhost, $dbusername, $dbuserpass);
mysql_select_db($dbname) or die('Cannot select database');

if ($_POST['username']) {
//did they supply a password and username
$username=$_POST['username'];
$password=$_POST['password'];
if ($password==NULL) {
echo "A password was not supplied";
}else{
$query = mysql_query("SELECT username,password FROM users WHERE username = '$username'") or die(mysql_error());
$data = mysql_fetch_array($query);
if($data['password'] != $password) {
echo "The supplied login is incorrect";
}else{
$query = mysql_query("SELECT username,password FROM users WHERE username = '$username'") or die(mysql_error());
$row = mysql_fetch_array($query);
setcookie("user", "$username", time()+3600);
echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"1; URL=membersarea.php\">";
}
}
}
?>
<form action='login.php' method='POST'>
<table style='border:1px solid #000000;'>
<tr>
<td align='right'>
Username: <input type='text' size='15' maxlength='25' name='username'>
</td>
</tr>
<tr>
<td align='right'>
Password: <input type='password' size='15' maxlength='25' name='password'>
</td>
</tr>
<tr>
<td align='center'>
<input type="submit" value="Login">
</td>
</tr>
<tr>
<td align='center'>
<a href='register.php'>Register Here</a>
</td>
</tr>
</table>
</form>
<?
};
?>

?End Of Login.php?

?Register.php start.?

<center>
<?php
// set your infomation.
$dbhost='localhost';
$dbusername='root';
$dbuserpass='root';
$dbname='root';
// connect to the mysql database server.
mysql_connect ($dbhost, $dbusername, $dbuserpass);
mysql_select_db($dbname) or die("Cannot select database");

//Are they just getting here or submitting their info?
if (isset($_POST["username"])) {
$username = $_POST["username"];
$password = $_POST["password"];
$cpassword = $_POST["cpassword"];
$email = $_POST["email"];
//Was a field left blank?
if($username==NULL|$password==NULL|$cpassword==NULL|$email==NULL) {
echo "A field was left blank.";
}else{
//Do the passwords match?
if($password!=$cpassword) {
echo "Passwords do not match";
}else{
//Has the username or email been used?
$checkuser = mysql_query("SELECT username FROM users WHERE username='$username'");
$username_exist = mysql_num_rows($checkuser);

$checkemail = mysql_query("SELECT email FROM users WHERE email='$email'");
$email_exist = mysql_num_rows($checkemail);

if ($email_exist&#620;|$username_exist&#620;) {
echo "The username or email is already in use";
}else{
//Everything seems good, lets insert.
$query = "INSERT INTO users (username, password, email) VALUES('$username','$password','$email')";
mysql_query($query) or die(mysql_error());
echo "The user $username has been successfully registered.";
}
}
}
}
?>
<h1>Register</h1>
<form action="register.php" method="POST">
<table style="border:1px solid #000000;">
<tr>
<td align="right">
Username: <input type="text" size="15" maxlength="25" name="username">
</td>
</tr>
<tr>
<td align="right">
Password: <input type="password" size="15" maxlength="25" name="password">
</td>
</tr>
<tr>
<td align="right">
Confirm Password: <input type="password" size="15" maxlength="25" name="cpassword">
</td>
</tr>
<tr>
<td align="right">
Email: <input type="text" size="15" maxlength="25" name="email">
</td>
</tr>
<tr>
<td align="center">
<input type="submit" value="Register">
</td>
</tr>
<tr>
<td align="center">
<a href="login.php">Login Here</a>
</td>
</tr>
</table>
</form>
</center>

?End Of Register.php?