This function sends GCM push messages using cakephp's HttpSocket

gistfile1.php

public function sendPush($token, $collapseKey, $title, $messageText) {
    if(!is_array($token)) {
        $token = array($token);
    }

    App::uses('HttpSocket', 'Network/Http');

    $HttpSocket = new HttpSocket();
    $data = array(
        'registration_ids' => $token,
        'collapse_key' => $collapseKey,
        'data' => array(
            'title' => $title,
            'message' => $messageText
        )
    );
    $result = $HttpSocket->post(
            'https://android.googleapis.com/gcm/send', 
            json_encode($data),
            array(
                'header' => array(
                    'Authorization' => 'key='.Configure::read('GCM.AuthKey'),
                    'Content-Type' => 'application/json'
                )
            )
    );
    
    if($result->code !== "200") {
        return false;
    } 
    else {
        return json_decode($result->body, TRUE);
    }
}