cURL does not return anything - php

Question

cURL returns nothing when on server. Everything works well on localhost, but when it's in remote hosting getSearchResults() returns nothing (or 302 header). Is this something wrong with server configuration (tried 2 different). Can it be something with CURLOPT_FOLLOWLOCATION? Tried both true and false on localhost - still works. On remote hosting it's not allowed to follow location for some reason, but if it works without on local I don't think that matters.
<?php
class cURL
{
private $username;
private $password;
private static $tmpfname;
public function __construct($username,$password) {
$this->username = $username;
$this->password = $password;
$this->makeCookies($username, $password);
}
private function makeCookies($username, $password) {
self::$tmpfname = tempnam("/tmp", "Cookie");
$useragent="Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1";
$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
curl_setopt($ch, CURLOPT_COOKIEFILE, self::$tmpfname);
curl_setopt($ch, CURLOPT_COOKIEJAR, self::$tmpfname);
curl_setopt($ch, CURLOPT_URL,"http://vk.com/login.php");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "email={$username}&pass={$password}");
ob_start();
curl_exec($ch);
ob_end_clean();
curl_close($ch);
unset($ch);
}
private function getHTML($url){
$useragent="Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1";
$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
curl_setopt($ch, CURLOPT_COOKIEFILE, self::$tmpfname);
curl_setopt($ch, CURLOPT_COOKIEJAR, self::$tmpfname);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
$contents = curl_exec($ch);
curl_close($ch);
return $contents;
}
public function getSearchResults($songname) {
$songname = urlencode($songname);
$contents = $this->getHTML("http://vk.com/search?c[section]=audio&c[q]={$songname}");
return $contents;
}
}
?>

Answer 1

A 302 code is a redirect, so you'll need to be able to use CURLOPT_FOLLOWLOCATION to get anything useful out of it.

Answer 2

There are plenty of implementations of redirecting mechanism on web for web servers that run php in safe mode. For example, here (the first place you should look it for actually) is the one I one day modified for my own script. It can process multiple redirects and is written in a way that you can easily understand and modify it.