Cron Jobs not executing

[Saveriott12]

I've added the following cron script:

mydomain.tk/new_curl.php

new_curl.php:

PHP Code:

<?php
include('curl.php');
?>

curl.php:

PHP Code:

<?php
$file = 'people.txt';
$person = "John Smith\n";
file_put_contents($file, $person, FILE_APPEND | LOCK_EX);
?>

not executing..