Send latest CommitStrip Comic to a HipChat Room

commitstrip.php

<?php
$storageFile = __DIR__ . '/commitstrip.lock';
$url = "http://www.commitstrip.com/en/feed/";
$content = file_get_contents($url);
$xml = new SimpleXmlElement($content);

$item = $xml->channel->item[0];
$title = (string)$item->title;
$link = (string)$item->link;
$date = (string)$item->pubDate;
$content = (string)$item->children('content', true)->encoded;
preg_match_all('#\bhttps?://[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/))#', $content, $match);

if(isset($match[0]) && isset($match[0][0])) {
    $html = $title . '<br /><a href="' . $link . '"><img src="' . $match[0][0] . '"></a>';
    $hash = sha1($html);

    if(file_get_contents($storageFile) !== $hash) {
        file_put_contents($storageFile, $hash);

        $params = array(
            'from_name' => 'CommitStrip',
            'color' => 'yellow',
            'notify' => 'true',
            'message_format' => "html",
            'message' => $html
        );
        $url = sprintf('http://api.hipchat.com/v2/room/%d/notification?auth_token=%s', YOUR_ROOM_ID, 'YOUR_TOKEN');
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_NOBODY, 0);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params));
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
        curl_exec($ch);
        $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        if (intval($status) === 204) {
            return true;
        }
        return false;
    }
}