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<?php
function httpRequest($url, $hostName, array $params){
$postParams = array();
foreach ($params as $key=>$val) {
$post_params[] = $key.'='.rawurlencode($val);
}

$postString = implode('&', $post_params);
$result = '';
if (function_exists('curl_init')) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: ' . $hostName));
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postString);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, 'DEMO.COM PREMIUM PHP5 Client ver: ' . phpversion());
curl_setopt($ch, CURLOPT_TIMEOUT, 2);
$result = curl_exec($ch);
curl_close($ch);
} else {
$context = array('http' => array('method' => 'POST',
'header' => 'Content-type: application/x-www-form-urlencoded' . "\r\n".
'Host: '.$hostName . "\r\n".
'User-Agent: TEST.COM BC Test PHP5 Client ver: ' . phpversion() . "\r\n".
'Content-length: ' . strlen($postString),
'content' => $postString));
$contextId = stream_context_create($context);
$handle = fopen($url, 'r', false, $contextId);
if ($handle) {
while (!feof($handle)) $result .= fgets($sock, 4096);
fclose($handle);
}
}

return $result;
}