Mine

<?php

function getChan($num)
{
	$page = Array("imgboard.html", "1.html", "2.html", "3.html", "4.html", "5.html", "6.html", "7.html", "8.html", "9.html", "10.html");
	$chan = fopen("http://img.4chan.org/b/" . $page[$num], "rb");
	$shit = stream_get_contents($chan);
	$save = fopen("cache.dat", "w+");
	fwrite($save, $shit);
	fclose($chan);
	fclose($save);
	
	if ($c=preg_match_all("/\d{13}\.[a-zA-Z]{3}/", $shit, $matches))
	{
		$images = array_unique($matches);
		print_r($images);
	}
	echo "Downloaded page " . $num . " from /b/!\n";
}

getChan(5);

?>