Unable to POST using cURL - php

Question

I'm trying to POST some form data to a site using cURL. It's not a secure site, and doesn't require logging in. It's just a form used to get back some information.
The form is here, and the form action is to the same page (it's in Turkish). This is how I have been trying to send the POST request in PHP:
$headers = array(
"content-length: 138",
"accept-language: en-US,en;q=0.8",
"accept-encoding: gzip, deflate",
"referer: http://objektifsonuc.com/",
"content-type: application/x-www-form-urlencoded",
"user-agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36",
"origin: http://objektifsonuc.com",
"accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
"cache-control: max-age=0",
"connection: keep-alive"
"host: objektifsonuc.com"
);
$query="il=1&ilce=1%3B18&okul=1%3B18%3B743729%3BTEOGS%2CSBS&sinav=100%3BTEOGS&sinif=8&ogrno=1941&ograd=BERKANT+%DDPEK&ogr=%D6%F0renci+Veli+Giri%FE";
$url = "http://objektifsonuc.com/index.php";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
echo curl_exec($ch);
Current result: The form page renders
Desired result: A different page containing some tables renders
Here are valid form inputs:
Şehir: ADANA
İlçe: SARIÇAM
Okul: Hacı Özcan Sinağ Ortaokulu
Sınav Türü: TEOGS | ADANA İL MİLLİ EĞİTİM OKDS
Sınıf: 8
Öğrenci No: 1941
Öğrenci Ad: BERKANT İPEK
Here is what the form looks like filled out:
Here are the form headers taken from Chrome on a successful POST request:
POST /index.php HTTP/1.1
Host: objektifsonuc.com
Connection: keep-alive
Content-Length: 138
Cache-Control: max-age=0
Origin: http://objektifsonuc.com
User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36
Content-Type: application/x-www-form-urlencoded
DNT: 1
Referer: http://objektifsonuc.com/index.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
And here is the POST body:
il=1&ilce=1%3B18&okul=1%3B18%3B743729%3BTEOGS%2CSBS&sinav=100%3BTEOGS&sinif=8&ogrno=1941&ograd=BERKANT+%DDPEK&ogr=%D6%F0renci+Veli+Giri%FE
I'm stumped. What is causing the POST to fail? Can anyone make this POST succeed?

Answer 1

This should work for you:
//open connection
$url = 'http://objektifsonuc.com/index.php';
$string = 'il=1&ilce=1%3B18&okul=1%3B18%3B743729%3BTEOGS%2CSBS&sinav=100%3BTEOGS&sinif=8&ogrno=1941&ograd=BERKANT+%DDPEK&ogr=%D6%F0renci+Veli+Giri%FE';
$ch = curl_init();
//set the url, number of POST vars, POST data
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, count($string));
curl_setopt($ch,CURLOPT_POSTFIELDS, $string);
//execute post
$result = curl_exec($ch);
//close connection
curl_close($ch);