Program to validate Nairaland credentials

nl.php

<?php

/*
 * Program to validate login details from nairaland.com
 * Author djade <www.djade.net>
 * */


// returns true if successful
function validateNL($username, $password) {
    $link = 'http://www.nairaland.com/do_login';

    $data = array('name' => $username, 'password' => $password);

    $options = array(
        'http' => array(
            'header'  => "Content-type: application/x-www-form-urlencoded\r\n"
                . "User-Agent: User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:28.0) Gecko/20100101 Firefox/28.0\r\n",
            'method'  => 'POST',
            'content' => http_build_query($data)
        )
    );
    $context  = stream_context_create($options);
    $result = file_get_contents($link, false, $context);

    if ($result === FALSE) {
        echo 'an error occurred';
        return false;
    }

    // if wrong username is present. That means login failed

    if(strpos($result, 'Wrong Username or Password') === false) {
        return true;
    } else {
        return false;
    }
}

if(validateNL('Your Username', 'Your Password')) {
    echo 'Login successful';
} else {
    echo 'Login failed';
}