Simple Login Script for small user base.

SD_Ryoko

Ultra Cool Member
Reaction score
85
First, save this into a file with a name. This file does all the work validating a user.

protectit.php
PHP:
<?
// Set up your accounts.
$user_passwords = array (
"user1" => "password1",
"user2" => "password2"
);

$valid_user = 0;

//Check login data first, then cookie data.
if(isset($HTTP_POST_VARS['username']) && isset($HTTP_POST_VARS['password']))
	{
	$username = $HTTP_POST_VARS['username'];
	$password = $HTTP_POST_VARS['password'];
	}
else
	{
	$username  = $HTTP_COOKIE_VARS['username'];
	$password  = $HTTP_COOKIE_VARS['password'];
	}

// Check if user and pass are set.
if(!isset($username) || !isset($password)) {
	$valid_user = 0;
	$message="Please login to access this page.";
}
else {
	// Login data is correct.  Reset (or set) cookie.
	if (strcmp($user_passwords[$username],$password) == 0)
	{
	$valid_user = 1;
	setcookie("username", $username, time()+3600);
	setcookie("password", $password, time()+3600);
	}
	else {
	// Login data inncorect. Stop user, delete cookie.
	$valid_user = 0;
	$message="Incorrect login. Please check username and password.";
	setcookie("username", $username, time()-3600);
	setcookie("password", $password, time()-3600);
	}
}

// Stop invalid user.  Show form.
if(!($valid_user))
{
	?>
	<form action="<?=$PHP_SELF?><?if($QUERY_STRING){ echo"?". $QUERY_STRING;}?>" method="POST">
	<b><? echo $message; ?></b><br/>
	Fields are case sensitive.<br/><br/>
	
	<table border="0" cellpadding="5">
		<tr><td>Username:</td><td><input type="text" name="username"></td></tr>
		<tr><td>Password:</td><td><input type="password" name="password"></td></tr>
		<tr><td><input type="submit" value="Login"></td><td></td></tr>
	</table>
	</form>
	<?
	exit();
}
?>

Now on any page that you would like to keep people from login in, all you need are these bits at the top of the file.

PHP:
<?
include("protectit.php");
?>
 
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