<?php
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL,"https://accesscenter.roundrockisd.org/HomeAccess/Account/LogOn");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
            "Database=10&LogOnDetails.UserName=username&LogOnDetails.Password=password");
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie);

// receive server response ...
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$server_output = curl_exec ($ch);

curl_close ($ch);

echo $server_output;
?>