A simple bot that extracts the daily lunch menu of my college's cafeteria and posts it to twitter.

mensabot.php

<?php

// Load required libs and stuff
require_once('lib/twitteroauth/twitteroauth.php');
require_once('config.php');
require_once('lib/simple_html_dom.php');

$tweets = Array();
$content = Array();

// Create a TwitterOauth object with consumer/user tokens.
$twitter = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, OAUTH_TOKEN, OAUTH_SECRET);

// Get the DOM from URL
$html = file_get_html('http://www.swo.uni-bayreuth.de/mensa/haupt_1klick.php?offset=0');

// Find all article blocks
foreach($html->find('td[width="*"]') as $a) {
    $content[] = iconv('ISO-8859-1', 'UTF-8//TRANSLIT',trim($a->plaintext, "&nbsp;"));
}
// Get the the lunch menu items from the pile
$tweets[] = date("D") . ": " . $content[1] . ", " . $content[4];

if (count($content) < 12) {
    $tweets[] = date("D") . ": " . $content[7];
} else {
    $tweets[] = date("D") . ": " . $content[10] . ", " . $content[7];
}

// Shorten if it's longer than 135 characters (135+hashtag = 140)
// Twitter API blocks messages longer than 140 characters.

foreach($tweets as $i => $t) {
    if (strlen($t) > 135) {
        $tweets[$i] = substr($t, 0, 134);
    }
}
// Post to twitter
foreach($tweets as $t) {
    $twitter->post('statuses/update', array('status' => $t  . " #ubt"));
}