CURL automatic post

<?php
$FindIndexPage = "http://www.someaddress.com/search.aspx?path=1547";
$FindSearchPage = "http://www.someaddress.com/search.aspx?path=1547%3b1631%3b1678&amp;lang=1";
$cookieFile = 'cookie.txt';
$regexViewstate = '/__VIEWSTATE\" value=\"(.*)\"/i';
$regexEventVal  = '/__EVENTVALIDATION\" value=\"(.*)\"/i';

function regexExtract($text, $regex, $regs, $nthValue)
{
if (preg_match($regex, $text, $regs)) {
 $result = $regs[$nthValue];
}
else {
 $result = "";
}
return $result;
}

$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_UNRESTRICTED_AUTH, TRUE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
$data=curl_exec($ch);

$viewstate = regexExtract($data,$regexViewstate,$regs,1);
$eventval = regexExtract($data, $regexEventVal,$regs,1);

curl_setopt($ch, CURLOPT_COOKIEJAR, $cookieFile);
curl_setopt($ch, CURLOPT_POST, FALSE);
curl_setopt($ch, CURLOPT_URL, $urlSecuredPage);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookieFile);

$data = curl_exec($ch);

curl_close($ch);
$id = "2453618-4";

$postData = '__VIEWSTATE='.urlencode($viewstate)
.'&__EVENTVALIDATION='.urlencode($eventval)
.'&_ctl0:ContentPlaceHolder:ytunnus='.urlencode($id)
;

$ch = curl_init();

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
    curl_setopt($ch, CURLOPT_UNRESTRICTED_AUTH, TRUE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_URL, $urlFindPage);
    curl_setopt($ch, CURLOPT_COOKIEJAR, $cookieFile);
    curl_setopt($ch, CURLOPT_COOKIEFILE, $cookieFile);
    //curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postData));
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
    $data2 = curl_exec($ch);

$data2 = str_replace("http://www.someaddress.com/search.aspx?path=1547%3b1631%3b1678&amp;lang=1", "http://www.someaddress.com/search.aspx?path=1547%3b1631%3b1678&amp;lang=1", $data2);
echo $data2;
curl_close($ch);
?>