Posting to service using CURL from PHP

curl.php

public static function callService($url, $postData) {
    if(stripos($_SERVER['HTTP_HOST'], "localhost") !== FALSE)
        $postData .= "&XDEBUG_SESSION_START=netbeans-xdebug";
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); // return into a variable
    curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
    curl_setopt($ch, CURLOPT_REFERER, $_SERVER['REMOTE_ADDR']);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
    $result = curl_exec($ch); // run!
    if($result === FALSE) {
        $result = array(
            'error' => curl_error($ch)
        );
        error_log("Curl error: {$result['error']}");
    }
    curl_close($ch);
    return $result;
}