Parse a Yahoo! Pipe of Twitter feeds to make wordle.net friendly output

twipple.php

<?php

/* twipple.php
 * Yahoo! Pipes + Twitter + Wordle
 *
 * Usage: php twipple.php | pbcopy
 * ...then paste into wordle.net
 */

$pipe_url = 'http://pipes.yahoo.com/pipes/pipe.run?_id=0Dd3hqOG3RGDdbrnbLsjiw&_render=php';

// Run a Yahoo! Pipe to get some Twitter feeds
$serialized = file_get_contents($pipe_url);

$arr = unserialize($serialized);

$items = $arr['value']['items'];

foreach ($items as $item) {
    $c = $item['content'];

    // Get rid of the Twitter username and trim whitespace
    $c = explode(':', $c);
    array_shift($c);
    $c = implode(':', $c);
    $c = trim($c);

    // Remove Twiter @usernames, transform #tag into tag 
    $t = explode(' ', $c);
    foreach ($t as $k => $word) {
        if ($word[0] == '@') {
            unset($t[$k]);
            continue;
        }
        if ($word[0] == '#') {
            $t[$k] = substr($word, 1);
        }
    }
    $c = implode(' ', $t);

    echo strtolower($c) . "\n";
}