Backup your tweets with PHP

slurp twitter

<?php

/**
 * Not my most graceful code, in fact this doesn't represent 
 * my coding style at all really but it serves a purpose and 
 * enabled me to backup 62 pages of tweets (1,223).
 * 
 * Don't forget to change the username before you back up my 
 * feed by mistake :)
 */

$username = 'g4egk';
$page = 1;
$slurp = true;
$tweets = array();

echo "Downloading page ";

while ($slurp) {
	$fp = fopen(
		sprintf('http://twitter.com/statuses/user_timeline/%s.xml?page=%s', $username, $page),
		'rb'
	);
	$buffer = '';
	echo " .";

	if (!$fp || !is_resource($fp)) {
		echo " read failed." . PHP_EOL;
		break;
	}

	while (!feof($fp)) {
		$buffer .= stream_get_contents($fp);
	}

	fclose($fp);
	echo ".";
	$xml = new SimpleXMLElement($buffer);

	if (count($xml->status) < 1)
		break;

	foreach ($xml->status as $tweet) {
		$tweets[] = array(
			'time' => $tweet->created_at,
			'tweet' => $tweet->text,
			'tweet_id' => $tweet->id,
			'reply_to' => $tweet->in_reply_to_status_id
		);
	}

	echo ". " . $page;
	$page++;
	sleep(2);
}

echo " complete." . PHP_EOL;

$doc = new DOMDocument;
$doc->formatOutput = true;

$channel = $doc->createElement("channel");

foreach ($tweets as $tweet) {
	$link = $doc->createElement("link");
	$link->appendChild($doc->createTextNode($tweet['tweet_id']));
	$title = $doc->createElement("title");
	$title->appendChild($doc->createTextNode($tweet['tweet']));
	$desc = $doc->createElement("description");
	$desc->appendChild($doc->createTextNode($tweet['tweet']));
	$reply = $doc->createElement("reply_to");
	$reply->appendChild($doc->createTextNode($tweet['reply_to']));

	$time = strtotime($tweet['time']);
	$pubDate = $doc->createElement("pubDate");
	$pubDate->appendChild(
		$doc->createTextNode(date('r', $time))
	);

	$item = $doc->createElement("item");
	$item->appendChild($title);
	$item->appendChild($desc);
	$item->appendChild($pubDate);
	$item->appendChild($link);
	$item->appendChild($reply);
	$channel->appendChild($item);
}

$rss = $doc->createElement("rss");
$rss->appendChild($channel);
$doc->appendChild($rss);

file_put_contents($username . '-feed.rss', $doc->saveXML());