<?php
$url = 'https://graph.facebook.com/me/feed';
$messagetosend = 'ąężźćęóń';
$access_token = 'CAACEdEose0cBAEuffIOb7F6YSQFOqEPiE0xXyzR6tBKstFtuj8d0fOxqarGkzFBZCYUdHhsadfseNbqP5oBZCv1vQCQ0bU4LZZAERWAGXAFfuakvg4u4xwSfd7OcoJfib2GopT9CfGLasWvRD1W7KRLz027uhQcYhGwguV8VsPMPETQKpQtxuCGZARplf1ifOfgNLZAzftBBn6FORfQvgILWZBr9C4MT1A3';
$source = 'apricot626.usermd.net/img/iph-6pfree.png';
$data = array('message' => $messagetosend, 'access_token' => $access_token, 'source' => $source);

// use key 'http' even if you send the request to https://...
$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
        'method'  => 'POST',
        'content' => http_build_query($data),
    ),
);
$context  = stream_context_create($options);
$result = file_get_contents($url, false, $context);
?>