how to create sub domains dynamically in cpanel using php?

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PHP

web-hosting

subdomain

Hello,
I have my website at www.000webhost.com,
and i need to create subdomain of my website as subdomain.mywebsite.com dynamically using php.
I have got a php function as

function create_subdomain($subDomain,$cPanelUser,$cPanelPass,$rootDomain) {

//  $buildRequest = "/frontend/x3/subdomain/doadddomain.html?rootdomain=" . $rootDomain . "&domain=" . $subDomain;

    $buildRequest = "/frontend/x3/subdomain/doadddomain.html?rootdomain=" . $rootDomain . "&domain=" . $subDomain . "&dir=public_html/subdomains/" . $subDomain;

    $openSocket = fsockopen('localhost',2082);
    if(!$openSocket) {
        return "Socket error";
        exit();
    }

    $authString = $cPanelUser . ":" . $cPanelPass;
    $authPass = base64_encode($authString);
    $buildHeaders  = "GET " . $buildRequest ."\r\n";
    $buildHeaders .= "HTTP/1.0\r\n";
    $buildHeaders .= "Host:localhost\r\n";
    $buildHeaders .= "Authorization: Basic " . $authPass . "\r\n";
    $buildHeaders .= "\r\n";

    fputs($openSocket, $buildHeaders);
    while(!feof($openSocket)) {
    fgets($openSocket,128);
    }
    fclose($openSocket);

    $newDomain = "http://" . $subDomain . "." . $rootDomain . "/";

    return "Created subdomain $newDomain";


}

when i pass parameters in this function then it shows socket error.
what could be the reasin please help me find out.